Original subtitles

[narrator] Previously on Blind Frog Ranch...

-David. -[Stephen] Good to meet you.

[Duane] Good meeting you, sir.

[narrator] In his quest to map the cavern system,

Duane recruits physicist, Stephen Leaah and his team

to scan the ranch using new technology

called quantum imaging.

We did two analysis.

Duane, what you're staring at is the Doppler shift.

[narrator] The scans reveal a mysterious anomaly near the Energy Zone.

[Stephen] I've only ever seen that

in supermassive black holes.

[narrator] And beneath it,

an unusual keyhole shaped chamber.

[Stephen] That's a series of resonances

that we've seen before inside known tunnels.

It's gotta be a cave, that's what it is.

It looks like a cave to me.

That circle under the Energy Zone

looks man made, no doubt.

[narrator] Searching the area for a way into the keyhole formation.

Come on, James, find that tunnel.

[narrator] James discovers a possible vent shaft

directly over top of it.

-You found something? -[James] Yeah.

There's been a hole there before, right here.

There is a cavern right below where this shaft is.

I don't think it's natural,

I think this was man-made.

[narrator] And to gain access,

the team blasts 15 feet of hardpack dirt covering the vent.

Three, two, one, fire in the hole!

-[explosion] -[James exclaims, laughs]

[narrator] But the blast seems to have triggered a flood...

-Oh, man. -[Chad] Damn.

That's a lot of water.

Did we crack open an underground river or something?

More like an underground tsunami.

[narrator] ...threatening efforts to dig in the area.

Whatever it is, it's pouring water

in every hole we have out here.

We have no dry access anywhere in sight.

[thunderclap]

[narrator] Blind Frog Ranch stretches over 160 acres.

A remote and rugged area in northeastern Utah.

It's a place shrouded in legends of ancient civilizations...

[Chad] Oh, wow, look at that.

This has to be hundreds of years back.

[narrator] ...and mysterious phenomenon.

[Duane] There's some kind of dark force.

We got something really weird here.

I've never seen anything like that.

[narrator] Duane Ollinger has owned a Blind Frog Ranch for over a decade.

Convinced that the land holds secrets...

[Duane] What the [bleep]

[narrator] ...and a massive cache of Aztec gold hidden underground.

We are sitting on some huge.

[narrator] Rumored to be worth more than three billion dollars.

Your ranch is part of the most famous treasure hunt that's never been solved.

[narrator] But every time he's gotten close...

[Duane] [bleep] Look at that.

[narrator] ...the land fights back.

What would eat the head off of it?

[engine revving]

[exclaims] Ooh! Ah!

It's blinking red.

Poison gas.

Let's get out! Go!

[bleep] Go!

[theme music swells, fades]

[Chad] So, here's what we drilled right there

and it flooded.

That blast knocked something loose down in that pond over there.

[James] Every hole around here is filling up with water.

We had to put a pin in this until this water drains

and we have to go somewhere else.

We got to look at it kind of like an excavation,

just as if we were at an ancient site

where we're working at multiple locations all at one time.

Not everything can be done at once,

at one spot.

We move on to the next.

I think the team is disappointed

that we can't keep digging at the vent shaft,

but when you're excavating at an archaeological site,

you never know what you're gonna run into.

You have to be flexible.

Sometimes you may start out with one thing in mind

and have to do a complete 180.

You have to follow where the site leads you,

not the other way around.

Do we have another location that's ready to go?

[Duane] So, here's the vent shaft.

We can't dig that all out, it's all flooded.

But what about digging on the other side?

That could dam sure be an entry point right over there.

That's the front door of this key shaped cavern system that quantum showed us.

-[Duane] and that's where we found the Indian beads. -Hm.

What Indian beads?

We found Indian beads from hundreds of years old

and for some reason, people are always attracted to go there.

Bead site has always been a special place.

People just seem to be drawn to it, we are.

Let's be respectful.

Because that's a sacred place.

[narrator] With the Energy Zone flooded,

the team is considering moving to a site near the tail

of the keyhole cavern,

which is higher in elevation

and known as the bead site.

For centuries, it has drawn visitors

who often leave small tokens and offerings behind.

It's also where Duane and Chad

have found what they believe are indigenous beads.

Down at the bead site,

we've been finding these beads for years and years.

We've seen hundreds of them.

That's why we call it the bead site.

[James] This sounds intriguing.

There's a very good chance that that could be an access point.

But it's worth a shot.

I think we should check it out.

-[James] All right, let's go. -Let's get to work.

It's right up here.

Those Indian beads, we don't know exactly how they got here,

but this whole thing is full of 'em right here.

And the deeper you go, the more you find.

[James] What other kind of stuff are you guys finding up here?

So, this is strange,

people sneak on this property and they come right here

and they leave offerings and the whole nine yards,

it is still going on to this day.

I come up about once a week up here,

there's coins, there's beads, necklaces, rings,

there's all kinds of stuff in there.

And it looks like everything's left in place.

Yeah, it's like they're compelled

to leave something here just to be here.

[James] It's really interesting.

We have what appears to be a rock shelter

facing south,

so during the winter, this would have been a lot warmer.

Look at the amount of charcoal,

the burn marks that are here.

And you can see, this is our normal dirt right here.

This is the regular color.

And then, this is spread out everywhere out here.

So, how many years would it take to get this much charcoal

all the way out there, 100 feet?

You're talking about a long period of occupation

by not just one group, by multiple groups.

I'm looking at this structure,

the more I see it, the more I see the burn marks.

Even over there, like, events,

just these little holes where smoke goes up.

This was being used for living quarters more than likely.

When you look around at the bead site,

there's simply no way to produce that much soot.

except for lighting and shoveling out fires

over and over again for thousands of years.

Interestingly, there are soot marks

above several of the vent holes in the rock face.

These were from fires that were lit somewhere inside this formation.

Both of these are hard evidence

that people were at this location for a very long time.

So, we're talking about going back thousands of years,

not just a couple of hundred years.

So, this site's extremely important, Duane.

Something is going on that's drawing people

for thousands of fricking years

to come to this whole area.

And this is one place we haven't got to explore in.

[James] I think we need to excavate here.

We might very well find a cave entrance.

I think we start excavating little by little,

documenting, like, stratigraphic layers.

I also want to catalog and label artifacts and all that.

That way, we respect the area.

I'm willing to go get the excavator.

Once I get that dugout,

then you guys can start doing what you do.

[James] While we're waiting for Duane to get the excavation gear up here,

I want to see if we can authenticate

these Native American beads.

If they're genuine, then that tells us

that Native American tribes were living here.

The question is why were they protecting the shelter?

Is this spot actually a filled-in entrance to the caverns below?

[Duane] Come on, let's go get that tackled.

[Chad] I'll see what we can find out about these beads.

We brought an expert, Dr. Morton out

to try to authenticate the beads we found at the bead site.

[Bob] My name is Dr. Bob Morton.

I'm a material scientist and X ray specialist.

So, I use a lot of X ray technology

and analyze materials

to help try to understand where they came from,

who was using them

and what period did it come from?

Hey, there's the gang.

Yeah, I got James right there

-and Charlie. -I've never met James before.

Bob, James Keenan.

-James Keenan. -Yep, yep. Come on in.

[Duane] Come on in.

I looked at all the samples that you guys sent me.

Very interesting results.

And I'm here to present the findings.

I think you're gonna be surprised.

We looked at the beads.

[Chad] What do you think?

But these beads are unbelievably small.

And if you look at them very carefully,

they're drawn in handmade.

It's glass with a trace of gold in there.

-Really? -[Bob] Oh, yeah, yeah.

And there's a variation in the size of the holes.

So, this is manufactured with a machine.

They're pretty old.

This was high-tech 1500 trinkets.

-Amazing. -Wow.

This is a big, big, big discovery.

Dr. Morton analyzed all of the beads.

It turns out that not only are these beads genuine,

but they could be potentially hundreds of years old.

They're trade beads.

They go by various names.

Hudson Bay beads, seed beads, Venetian beads.

The Spaniards brought the trade beads

many, many centuries ago.

When the Native Americans saw these,

they wanted them.

[narrator] Originally produced on the Venetian island of Murano,

these beads were traded by Venetians,

and then brought to the New World by the Spanish.

There they were highly prized by Native Americans for their color

and were used as currency throughout North and South America.

This was like,

better than gold for the Native Americans.

So, they would value these colors over gold.

-Yeah. -Yeah.

What they wore was highly important to them.

Not only did it show status,

but it also gave them the ability

to trade for other items from far off.

It all proves the point, that was their goal back then.

Why would they not put it by their valuable stuff.

Or where they stayed or their cave entrance or whatever.

Which just leads, we keep going down, we need to dig that out.

We have a good spot over there.

-Very, yeah, absolutely. -Agreed.

Who knows what other artifacts we can find the deeper we go.

We definitely appreciate your time coming all the way out here.

Oh, this is no problem.

-I appreciate it. -All right, thanks, Bob.

[narrator] To determine if the bead site

might be an entrance to the keyhole formation,

Duane will first carefully remove approximately

800 cubic feet of dirt from the area.

While James, Chad and Charlie examine the soil for artifacts.

Right now, I think the best thing that we can do is pull everything out,

separate it into mounds and piles.

Charles is hitting it for metal,

but then, we'll start sifting through it.

We'll look for smaller artifacts.

[digital beeps]

[Charlie] So much metal in the ground here.

Charlie, the whole [bleep] excavator is metal, brother.

[digital beeps]

-I know that. -[both laugh]

[Chad] Head of security.

He found the excavator.

That was a close one.

[digital beeps]

[Chad] Look how dark that soil is, man.

[bleep]

It's like, virgin soil.

Oh, wow.

[digital beeps]

Look at that scraper.

Look at that. Look at those edges.

-No way, that's sharp as [bleep] -[James] That's like--

This was Native American.

Scrapers were used for both butchering meat

and for straightening out projectile points.

It really could be from any number of tribes.

But based on the fact that we're mining it from the same stratum

of these 500 year old beads,

my guess is that it's some type of Uto-Aztecan tribe,

like the Shoshone,

that have been here in the area for the last 1,200 years.

And I mean, you're talking about

being under four to six feet of dirt.

So, hopefully, as we keep going deeper and deeper,

we're just gonna start finding older artifacts and material.

Nice. That's serious, man.

It's going great, we're finding old artifacts,

it's a good sign.

We seem to be following a trail of human artifacts

as we go down deeper and deeper.

We're not even going that deep yet,

so if we even go deeper,

there's no telling what's down there.

Hopefully, this will lead us to the tunnel entrance.

Well, how'd you find that little thing?

[James] It was on top.

[Chad] Look at this.

Is that bone?

[digital beeps]

Holy! Hey, look at this!

Check this [bleep] out.

Holy [bleep]

Holy! Hey, look at this!

Check this [bleep] out.

[narrator] Duane and the team are excavating an area of the ranch

known as the bead site,

which sits just above the tail end of the keyhole formation.

-Is that bone? -[Chad] Yeah.

It's like a...

It's like a hip bone or something.

[James] A hip bone, yeah.

Makes you wonder.

Huh, what do you think of this?

That's gotta be a hip of, like, a cow or a deer, maybe.

[James] There are some cuts into here.

You can tell there's been a cut right here.

This looks like the deepest with a pretty sharp scraper.

If you look into the petroglyphs,

there is... appear to be a lot of bones turned into face masks.

And it would have been, I mean, it could have been like this.

Oh [bleep] Look at that.

-That's badass! -[Charlie] Yeah.

-[whoops] -[Charlie] Cleaned up.

[James] They could have repurposed that

into some type of headgear.

A lot of Native Americans and Mesoamerican cultures

were known to use the ceremonial masks in their rituals.

And masks made from bone or even complete skulls

had been found at Templo Mayor,

which was the Aztec capital of Tenochtitlan, now, presently Mexico City.

You know, they would have been up here, obviously, this broke off.

But they would have had... they could have had feathers

or anything else added to the top.

Deer skin.

I mean, that's exciting.

That's an amazing find if that's what it is.

Obviously, we have to look into it more, clean it up.

But yeah, it's this huge time capsule underground.

And it's getting better and better

the further and further down we go.

That's a great find.

I'll go put that over with the others.

[narrator] Duane has moved close to 800 cubic feet of earth

from the mouth of the bead site.

But at this point, the excavator is unable to reach any further

without possibly damaging the rock.

[Chad] You're gonna hit that overhang.

[digital beeps]

I think so.

That's as far as we can...

[narrator] With the angle of the rock overhang,

the track hoe can't safely dig any further

into the possible cave mouth at the shelter.

To break apart the remaining soil and sedimentary rock

will require a horizontal drill.

In the meantime,

the team will continue to excavate by hand.

[Chad] So, we're done digging for the day with the track hoe,

so we don't scrape the wall and mess it up

'cause there could be petroglyphs

or who knows, an opening around here.

So, we just wanna be real careful

with the integrity of this whole cave.

Oh, it's another...

James, look at this.

[James] Now, that was used for grinding.

-[Chad] It's flat. -[James] Yep, yes.

That's exactly what that was used for.

That's a grinding stone.

You can see where it was worked.

Chad has found another really cool artifact.

It's seven feet,

which is the same stratum as that bone mask.

This is a grinding stone.

It's known as a metate.

It was used to grind corn

which they call maize for tens of thousands of years.

-Yeah, I know, these are good finds. -Yeah.

[James] Yeah, we'll definitely, we'll clean them up.

[Chad] Hold up.

Antiquities are showing us

and hopefully, how they got in and out of the cavern.

This could be the entrance to the cave.

So, we're just gonna go through each one of these piles

and see what all we can find.

[digital beeps]

Right there.

[digital beeps]

Still there.

[metal clanks]

It's got rock stacked in it.

I will lose my hip, whatever that was.

I suspect it's probably modern.

No.

What the hell is this?

Is that a quarter?

Hey, guys, y'all gotta come look at this.

[Chad] Huh?

[Charlie] Come here and look and see what I just found.

[Chad] He found something?

Spanish is what this is right here.

What did you find?

[Charlie] It's a coin.

A Spanish coin.

I'll be damned. Where did you find it?

I was digging in this hole right here, found it.

Look at that [bleep] 1784.

No [bleep] Look at that.

[James] Looks like silver from here.

[Duane] What did it ring up as?

-[Charlie] Oh, on the metal detector? -[Duane] Yeah.

[Charlie] I found it right up in here.

It was pretty exciting to find that

a Spanish coin from the 1700s.

And, you know, is this the beginning of our finding the cache of treasure up here?

All we can do is just keep digging.

[Duane] Hell of a find, Charlie boy.

Yeah, hell, that gives you a little hope.

[James] The Spanish coin allows us to know that

there were people here

that had it in their possession.

And we're talking about a coin from the late 1700s.

The only way there would be a Spanish coin here in the Uinta Basin

is if it was brought from what's now Mexico.

[narrator] For hundreds of years after the Aztecs fled from Mexico to Utah

with Montezuma's gold,

the Spanish Conquistadors dispatched armies

to search for the treasure.

This coin could be evidence

that they searched in this area.

[Chad] Having found one, there's got to be more than that.

Let's keep looking.

[Chad grunts]

[digital beeps]

[James] I wanna grab some of that dirt from up there

and I'll sift through it.

-[Duane] Take it now. -[James] Okay.

I'm gonna take some of that.

This is... right over here.

[digital beeps]

[Duane] Hell yeah.

[James] This is from that back area.

Look. Hey, guys, look, look.

-[Chad] You found another one? -[James] Yeah.

Another coin?

[James] Another coin.

This one is in really bad shape.

-[Duane] It's all bent. -[James] Look at that.

The only thing I can read is...

1782, I think.

That's a hell of a find.

I mean, it's over 200 years old, each one of those.

Now, let's keep digging, find some more [bleep]

[James] All right, keep going and grabbing more of that dirt.

I mean, there's no telling what's in here.

If we find the cavern, man,

it could lead to this buried treasure that we're looking for.

[narrator] Coming up...

[Chad] Hey, guys, we're ready to drill? This is it.

[Charlie] Drill, baby, drill.

[bleep] hold on, boy.

[engine accelerating]

[Chad] Hey, guys, we're ready to drill?

[narrator] Unable to reach any further into the mouth of the bead site

without potentially damaging the rock overhang,

the team has decided to swap out the excavator

for another piece of heavy equipment.

A horizontal drill.

[Chad] Here we go, this is it.

Today is the day.

So, we had this... [grunts]

horizontal drill

that I haven't ran in a while.

But I think we're gonna have to see if we can figure it out real quick.

But kind of like riding a bike, I guess.

I gotta get used to this thing again.

[narrator] The horizontal drill can extend hundreds of feet,

reaching much further and with more precision than the excavator.

Using a blast of water and rotating teeth,

it can easily loosen the hardpack soil

and tunnel a path to the cavern mouth.

It's been a few years since I have jumped on these.

[beeping]

[Duane] Whenever they don't send the operator

with a piece of equipment,

that is gonna be a challenge.

It always has and always will be.

One thing about it when Chad gets on something like this,

he'll figure it out.

He's always been pretty mechanically inclined.

You know, I haven't drove one of these in a few years,

so they're real technical,

there's a lot of buttons

and they're all a little different.

And a lot of the labels on the buttons are all worn out.

You can't see what it is.

I mean, even like, switch a piece of pipe out,

it's like four buttons,

so you have to do one thing after another after another

and we're paying by the hour.

So, this is... It's [bleep]

[engine starts]

[Chad] Nice.

Okay, I got it now.

So, I got the drill in place.

All we have to do now is hook up the waterline from the tanker to the drill.

[Duane] Yeah, the biggest problem is,

really, it's not your equipment.

So, whoever is gonna bring whatever you need out here,

you just don't know if they're gonna bring you the right stuff.

And apparently, we got some hoses

that we have to play with right here.

Attaboy.

I think we got a male to male there.

Charlie boy, they gave us two...

-two male ends. -[Charlie] Yeah.

What the [bleep]

Oh [bleep]

So, we have a connector hose right here.

We got a female, and then, a male here,

and the attachment here is a male,

so there's two males that don't hook up.

It doesn't make babies.

There's a hose in the storage building.

I'll go over and look at it and see.

Okay, we need a female to female.

Yes, sir, two inches.

[Duane] This is not good.

[Charlie] I brought up what I had in the shop.

So, if I...

If I could make any of it work,

then, hell, somehow, we'll just rig it where we get water in it.

Here it goes.

-[grunts] Okay. -There we go.

Well, see what we got.

When they sent the drill out and the water truck,

they didn't give us a female to female coupler.

So, we looked around the ranch and actually found one.

So, we got it set up.

We now have to move the drill and the water truck

and they hopefully start drilling.

We're gonna center drill right in the path

where we're finding all these artifacts.

We know from the soot deposits

that people were inside this rock formation.

So, hopefully, this trail of artifacts

is pointing us right into the cavern entrance.

[Duane whistles] Hold!

[Duane whistles]

[Chad] Oh [bleep]

It's good!

Perfect.

-Go back her in it. -[Chad] All right.

[Duane] We'll hook the water lines up, it'd be good.

I'm gonna try to get the truck a lot closer.

We only have so longer hose.

So, I'm gonna ram it back and see how close we can get without getting stuck.

Here we go.

[Charlie] Behind.

[Chad] This [bleep] is heavy.

[Duane] Yeah, yeah, you got a good run at it.

[Chad] So, my concern with the water truck is this soil is so loose

and your tires can just spin.

Plus, we're carrying a [bleep] load of water,

it's just heavy on it.

So, we're gonna get a run at it, and maybe we'll get close.

[Charlie] All right, he's gonna be coming hard now.

Yo!

[Duane] A little bit more, son.

Come on! Give her hell.

Charlie boy!

He's gonna give her hell.

Get out of the way, he might not control it.

[engine revving]

-[Chad] Hey, we're clear? -[Duane] Come on!

-[Chad] All right? -[Duane] Yeah!

You better [bleep] hold on, boy.

[horns honking]

[Duane] Give her hell!

-[engine revving] -[Duane] Come on back!

Come on!

[engine revving]

[Duane] Give her hell!

-[engine revving] -[Duane] Come on back!

Come on!

Hell yeah! Hell yeah!

What do you think?

Perfect.

[narrator] With the drill and water tank in place,

the team can begin to bore through the dirt

at the mouth of the bead site.

All right, no leaks. Let's drill, huh?

Yeah, yeah. Fire it up.

[beeping]

[engine starts]

[Chad] Oh, we're good.

[exclaims] Yeah!

It's working!

Hell yeah.

Feel that, it's, like, crunching.

I mean, it's like a crunching.

It's not like a dirt.

It's grinding, it's like a...

-[Charlie] I can hear it crunching in there. -[Chad] Really?

Every time it does that, evaporates the ground around it.

Yeah.

[Chad] Hey!

[Charlie] Hold that for a second, let's see where it's up.

It's another one of those beads.

[Chad] Really?

-[Chad] We are on the right track. -[Charlie] Yeah.

What are you... You're 30 feet in?

Yeah.

This probably came out at around 25 feet.

-[Chad] Really? -[Charlie] Yeah.

[machine whirring]

Keeps changing color, the water.

[Chad] Really?

That's good!

Probably going through some different layers of soil.

How the [bleep] we'll get in the cave, then?

-[Charlie] Drill, baby, drill. -[Chad] Yeah, hell yeah.

[narrator] A sudden lack of friction

means that the bid has entered a void

and water has stopped flowing from the borehole

because it's pouring into the void instead.

[Charlie] That's a very good sign, right there.

We're damn sure in the void.

Well, that's good news.

[dramatic music playing]

What the [bleep]

[Chad exclaims] Ah!

So, right now...

we're in a void,

and we're pumping water in there,

but for some reason,

the water is coming right back out.

[Charlie] You can see when he turns the water on,

it shoots out.

[narrator] Water has started pouring back out of the borehole,

indicating that the void the team has reached is quite small.

If it was a larger cavern,

the team could expect the water to pour continuously into the hole

rather than quickly spinning back out.

[Chad] [bleep]

And it looks like you're almost underwater,

-all the way back track. -[Chad] Yeah.

Yeah, we're flooding here.

[Charlie] Yeah.

[machine whirring]

It's hitting something 'cause it's bouncing.

Yeah.

We could be against a cavern, it's getting stuck.

[narrator] While the drill easily passed through

30 feet of dirt and a small void,

it suddenly has ground to a halt.

The most likely explanation

is that the rock wall above the bead site

extends deeper into the ground than they thought.

God, hear that water just draining down.

It's been hours and I'm not getting anywhere.

Like, this is a dead end.

[Charlie] That didn't take probably three to five minutes

for that void to fill up

before that water started coming back out,

-so it's a small void. -Yeah.

That could be at the bottom of the void.

Yeah, could be or that could be a seam

that leaves us to a bigger cavern.

I don't think so

because where the drill bit hit the back of the void,

it just stopped dead.

It just kept grinding against the limestone,

but it wouldn't go anywhere.

There's no entrance there.

I think that rock wall that you hit,

I think it just goes straight down.

You know, we can see the smoke vents on the outside.

They got to connect with something in there.

I know, it's got to be something big enough

for people to get in to start a fire.

But that shelter is not the way in.

We know that the keyhole cavern passes under here,

but not how far down under it goes.

Who knows how far that smoke traveled up

to leave those soot marks.

Even this side of the cavern is pretty wide.

It could be 100 foot across there.

So, that entrance could be anywhere above that.

And there's a ton of cracks and holes above this formation

that we've never really even looked at.

[narrator] The narrow end of the keyhole cavern

is around 100 feet wide.

Despite drilling into a dead end at the shelter area,

there are still thousands of square feet of the bead site

where an entrance could be hidden.

Well, not the magnetometer, James,

'cause it helped us find the void

underneath that dig site.

It's possible, so I think we should definitely try it.

I'm gonna grab my metal detector

and I'll go up there and see what else I can find.

So, we can crawl over that whole area

and start seeing if there's any cracks and formations

that might show at the entry point.

-We'll see that. -[James] Let's do it.

[Duane] That's a pretty good find there, Charlie boy.

And then, James steps in and does some sifting and finds...

-finds a second one. -[James] Second coin.

[Charlie] Yeah.

-Two years' difference, 1784, 1782 -[Charlie] Yeah.

[James] The Spaniards, the Conquistadors

were trading with the Native Americans.

The Spanish Conquistadors were here for one thing,

it was greed.

It was to conquer and take what they could.

It was treasure seeking.

That was all that they wanted.

Over 240 years ago,

somebody was there

and they lost those coins.

That tells us, you know what?

That we're on the right track,

and we're in the right spot,

and we have to focus in on that bead site.

[Duane] So, how are we doing this?

I'm gonna use the magnetometer.

What it's gonna tell us is if there's any type of void below ground.

[Duane] All right.

Our objective is to find that underground entrance.

Yeah, good stuff.

[digital beeps]

If we find the void, we're digging.

[James] I'm gonna methodically look through the bead site

where we dug for any voids.

But I'm also gonna spot check any areas

that visibly look like a possible filled in entrance on the rock formation.

We have to be careful how and where we scan

because uneven ground could cause false positives.

[narrator] The team needs to cover 16,000 square feet of area

where the bead site formation sits over the tail end of the keyhole cavern.

They're searching for any anomaly

that might indicate a hidden entrance

into the cavern below.

[beeping]

Chad, do you want me to hit this top to bottom?

-Whatever you think, man. -Okay.

Just find that [bleep] hole for all I care about.

[Charlie] They're all on that side looking for an opening

and I'm gonna spend my time right here.

I felt for 14 years this is the entrance.

You're looking at ancient times here.

And you know, I think it takes someone that's older, slower and wiser

to listen to this mountain.

[beeping intensifies]

Yeah, let's see what we got here.

It's a modern ring.

It was left here.

[Chad] It's like, you just need to carry that behind you all day, you know?

[laughs] Right.

Just drive me around on the back of the ATV.

[Chad] Hang it off your backpack.

[Charlie] How long, just one second.

Look here.

Hey, guys, you gotta come check this out.

Hey!

[Chad] What do you got?

That's a cross.

[bleep] And it's got patina on it,

it's been there for a very long time.

But that's definitely a cross.

It's sitting right here.

Like, it was marking a spot.

[Chad] But what spot is it marking?

Damn sure it looks like a cross right here in front of it.

Good job, Charlie boy.

Usually, when you see a stone with a carved cross like this,

it's a religious symbol or a trail marker.

But the Native Americans and the Mormons that were here in the area,

they didn't use a cross as a religious symbol at all.

That makes me think that this is definitely a trail marker for something.

The cross that Charlie found has to be marking something,

but what?

It could have tumbled down the hill

or could have been moved here.

We just have to keep searching.

[beeping]

[Charlie] I think we need to focus right here for a while.

-[Duane] Son. -[Chad] What?

[Duane] Look at that rock right there. What's behind that rock?

Right in front of you.

Well, it's like, it's covered up.

Look behind that deal.

[Chad] Oh!

It almost looks like, they're just shoved in there, doesn't it?

To, like, hide it.

[James] That does look a bit odd.

But it's worth checking out to see if it keeps going back into the hillside.

You've seen this before?

[Duane] Never, never. New one here.

[Chad] Look out below.

Watch out, James.

Sorry.

[Chad] It just doesn't look natural.

Looks like it was placed here on purpose.

[James] Can you get in there more?

[Chad grunts] Rock! Jesus.

I can see, like, ten foot,

and then it looks like a wall on the back,

but it goes down deeper.

[James] Look at that.

Look out.

[Duane] This is something.

Let's get in there and see what we got here.

[James] I think you're just gonna have to crawl in.

[Chad] Look out.

Don't take any unnecessary chances.

A collapse is a pretty big possibility right now.

It will be a son of a bitch to get you out of there

if any of that collapses.

We'll just start pulling it all loose throughout.

We'll keep pulling it out, and that will give you more space.

From what I can see here,

it looks like it goes further back.

[digital beeps]

[digital beeps]

[Chad] Metal detector on my belt keeps beeping.

I heard it go off twice.

-[digital beeps] -[Chad] Maybe its batteries are loose or something.

[people coughing in the background]

[digital beeps]

[digital beeps]

[bleep]

Hey, look at this.

-[digital beeps] -[Chad] Look at this.

-[Duane] What? -This is going off, this is metal.

That's gotta be a lot.

A gold little--

This looks like a slag ingot bar.

It is pretty fricking heavy. I mean...

[Chad] There might be more in here.

[digital beeps]

[Chad] Oh, it's still going off, man.

From the weight and the way it looks,

I think it's a low purity gold bar.

[dramatic music swells]

Holy [bleep] dude!

Finally, I get to hold [bleep] gold in my hand.

[James] Look at that, Duane.

[bleep]

[laughs]

[dramatic music fades]