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Hidden Gem

Big Basin Prairie Preserve

1473 County Road 32, Protection, KS

Ashland, KS

A mile-wide sinkhole where the ground dropped hundreds of feet, now a native prairie roamed by a small herd of bison and cut by a spring-fed well that never runs dry.

Big Basin Prairie Preserve protects one of the strangest pieces of ground in Kansas, a natural sinkhole close to a mile wide and a few hundred feet deep, its floor now a rippling native prairie grazed by a small herd of bison. You drive down into the bowl on a rough track and find yourself surrounded by grassland walls, as if the plains had opened up and dropped away.

A short distance off lies a second, smaller sinkhole holding St. Jacob's Well, a deep, clear, spring-fed pool that local lore says has never been known to go dry, even in the worst droughts. Together the two basins tell a hidden story about what lies beneath the Red Hills, and the whole preserve is a fine, quiet window into the wild short-grass prairie.

What Guests Love

  • Standing on the rim of a natural sinkhole nearly a mile across
  • Watching the resident bison herd graze the native prairie inside the basin
  • The short walk down to St. Jacob's Well, a deep, spring-fed pool that has never gone dry
  • Red Hills country and dark, quiet skies with almost no light for miles

Worth Knowing

  • The bison are wild animals, so stay in or near your vehicle and keep a safe distance
  • The road into the basin is unpaved and can be rough or slick after rain
  • There are no services at the preserve, so bring your own water and supplies
  • Watch your footing near the well and along the rims, and keep an eye out for rattlesnakes in warm months

Details

Address1473 County Road 32, Protection, KS
Ashland, KS
Websiteksoutdoors.comLink opens in a new tab.

Learn about Big Basin Prairie Preserve

Bison, prairie, and the people of the Red Hills

This red-earth country lay within the historic hunting range of the Southern Plains tribes, among them the Kiowa, Comanche, and the Cheyenne and Arapaho, whose descendants are federally recognized nations today. For centuries the great bison herds moved across these grasslands, and a spring-fed pool like St. Jacob's Well would have been a known and valued water source in a dry land.

The commercial slaughter of the 1800s all but wiped the bison out, and the animals that graze Big Basin today are a small managed herd, part of the long effort to keep native grazers on native prairie. Watching them move across the basin floor gives a real sense of the plains as they once were.

How the ground fell in

Both basins are sinkholes, formed where thick beds of salt and gypsum deep underground slowly dissolved in groundwater over long ages. As those layers washed away, the rock and soil above lost their support and collapsed downward, leaving a great bowl in the surface of the plains.

St. Jacob's Well sits in a smaller, deeper collapse where the sinkhole reached down to the water table, so it holds a permanent spring-fed pool. The steady water in a dry region is what made it famous, and its reliability in drought is part of the reason it drew travelers and stock for generations.

Wildlife of the basin

Besides the bison, the preserve supports the wildlife of the mixed and short-grass prairie. Pronghorn and mule deer range the grass, coyotes work the draws, and prairie dogs, hawks, and grassland songbirds fill out the community.

The permanent water at St. Jacob's Well draws birds and other animals from across the surrounding country, especially in the dry heat of late summer. On a still evening the basin can feel remarkably alive, with the sounds of insects and birds rising off the grass.

Season by season

Spring brings green grass and wildflowers to the basin floor and the best all-around weather, though spring rains can make the road in tricky. Summer is hot and open, with long light for evening visits when the bison are most active and the heat has eased.

Fall turns the prairie gold and brings clear, cool days that are ideal for a slow visit. Winter is cold and wind-swept out here, and snow or mud can make the road into the basin difficult, so the warmer seasons are the surer bet.

Closest Boutels

The closest Boutel™ stays, so you can turn this stop into an overnight. Each is an independently owned, editorially selected place to stay.

Evergreen Inn Motel & RV Park

Honorable Mention

20001 W. US Highway 54, Pratt, KS

(620) 672-6431

50 miles away|Learn More ›

Skyliner Motel

Honorable Mention

717 W Main St, Stroud, OK

(918) 290-0637

192 miles away|Learn More ›

Prairie Lodge Motel

Honorable Mention

1219 Old US Highway 56, Council Grove, KS

(785) 466-6588

193 miles away|Learn More ›

Things to Do Near Ashland

Ashland

About 15 miles southeast

A small ranch town and the seat of Clark County, with a local museum and services for travelers in the Red Hills.

St. Jacob's Well

Within the preserve

A deep, spring-fed pool in its own smaller sinkhole, reached by a short walk, said never to have run dry.

Red Hills country

Surrounding the preserve

Rolling grassland with reddish soil, buttes, and mesas, some of the most scenic and least-traveled country in Kansas.