These Oklahoma mesas are covered in crystals and you’re allowed to pocket them

They’re called the Gloss Mountains

Flat red prairie stretches for miles in every direction across northwest Oklahoma, and then these mesas just appear.

They rise 150 to 200 feet straight up from the plains near Fairview in Major County, about two hours north of Oklahoma City off US Highway 412.

They’re part of the Blaine Escarpment, and the caps are covered in selenite crystals that catch the sun and flash like someone shattered a mirror across the hilltops.

The park even leaves baskets of selenite along the trails for you to grab on your way through.

An ancient sea left all this behind

These formations go back to the Permian Period, somewhere between 230 and 270 million years ago.

A massive inland sea once covered western Oklahoma and the Texas Panhandle, and when it dried up over millions of years, it left thick layers of shale, siltstone and gypsum across the land.

That gypsum cap holds the selenite, which is what gives the mesas their glassy, reflective surface. The highest point in the formation reaches about 1,600 feet above sea level.

A mapmaker’s typo gave them their name

Spanish explorers passed through this area first, but the name came later.

In 1821, American explorer Thomas James traveled through on a trading expedition along the Cimarron River and described the formations as shining or glassy.

By 1873, the name Glass Mountains showed up on a federal land office map. Two years later, a mapmaker wrote “Gloss” instead of “Glass.”

The mistake stuck, and locals still call them the Gloss Mountains today.

Fairview’s residents built this park themselves

Oklahoma set aside funds in 1977 and matched them with a federal grant to buy 640 acres for a public park. But the state couldn’t pay for construction, so ranchers grazed cattle on the land for the next 20 years.

In 1997, state officials met with Fairview residents who formed a Conservancy to run the park themselves.

The state provides the land, local citizens maintain the facilities, and a volunteer gatekeeper opens and locks the gate each day.

Metal stairs climb straight up Cathedral Mountain

The Cathedral Mountain Mesa Trail runs 1.2 miles out and back with about 173 feet of elevation gain. You start at the parking lot and climb a series of metal stairs and a stairway system bolted to the rock face.

The stairs are steep and narrow, so passing other hikers gets tight in spots. Most people finish in 30 minutes to an hour.

There’s no shade anywhere on the trail, so bring water and sun protection.

Three counties spread out below the summit

From the top of Cathedral Mountain, the valley floor opens up in every direction.

Lone Peak Mountain, the tallest butte in the range, stands to the north, and the Cimarron River cuts across the distance beyond it.

To the west, the Cheyenne Valley stretches out with the wider Gloss Mountain range rolling along beside it.

On clear days, you can see miles of prairie broken only by red dirt and patches of green brush all the way to the horizon.

Rain makes the selenite crystals pop

Selenite is a form of gypsum, also known as isinglass.

The crystals are small, clear and glassy, scattered across the slopes and mesa tops like bits of ice. After a rain, the red dust washes away and the selenite stands out even more.

When clouds break and sunlight hits at the right angle, you get a spotlight effect across the hillside that makes the whole mesa flash. The park sets out souvenir selenite in two baskets along the trails for you to keep.

Oklahoma’s state reptile lives right here

Keep your eyes on the rocks and you might spot the eastern collared lizard, Oklahoma’s state reptile. Males run bright green with black collars and can stretch over four inches long.

They thrive in rocky spots like these mesas. Above you, turkey vultures and eagles ride the thermals, especially in warmer months.

Blacktail jackrabbits, coyotes, whitetail deer and harvest mice live throughout the park, and rock wrens and rufous-crowned sparrows call from the brush.

Cactus and wildflowers color the red soil

The land around the mesas is semi-arid, covered in buffalo grass, red cedar, mesquite and cactus.

Two cactus species grow here, Echinocereus caespitosus and Opuntia phaeacantha, and sand bluestem grass spreads across the prairie floor.

In spring, wildflowers bloom along the trails and break up the red and green with splashes of color.

Year-round, the contrast between red soil, green brush and white gypsum caps gives you a landscape that looks like nowhere else in Oklahoma.

Stay for sunset and the stars come free

The park sits in western Oklahoma, far from any city lights. That means the light pollution out here is about as low as you’ll find in the region.

The flat, open terrain around the mesas gives you wide, unobstructed views of the night sky in every direction.

If you time your visit right, you can watch the selenite glow golden as the sun drops, then stick around the surrounding area after the park closes at sunset for some of the darkest skies in the state.

No camping, no fees, no excuses

You can walk in any day of the year from sunrise to sunset, and it won’t cost you a thing.

Vehicles can enter from 7:30 a.m. to 5 p.m. The park has restrooms, pavilions, picnic areas, grills and a public water supply. A handicap-accessible trail leads to a historical marker near the entrance.

There’s no camping, no lodging and no overnight stays inside the park, but leashed dogs are welcome on the trails.

Pair it with crystal digging down the road

Most visitors spend one to two hours here, so it works well as a day trip. Wear sturdy shoes or hiking boots, even for the short trail.

The drive west on Highway 412 from Orienta runs through a scenic 24-mile stretch before you reach the park.

If you want to make a full day of it, the Great Salt Plains State Park in Alfalfa County sits close enough to combine into one road trip, and you can dig for hourglass-shaped selenite crystals there too.

Visit Gloss Mountains State Park in Oklahoma

You’ll find Gloss Mountains State Park off US Highway 412, about five miles west of Orienta and northwest of Fairview, Oklahoma. The park is open daily from sunrise to sunset, and admission is free.

Restrooms, picnic areas, pavilions, grills and public water are all on site. There’s no camping or lodging inside the park, so plan this as a day trip.

Check the official website before you go for any seasonal updates or trail conditions.

This article was created with AI assistance and human editing.

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