Hell’s Half Acre

About

Hell's Half Acre is a stunning geological formation located about 40 miles west of Casper, Wyoming, along Highway 20/26. This 320-acre expanse of deeply eroded badlands features a maze of canyons, caves, and towering spires carved by centuries of wind and water. The site has earned colorful nicknames over the years, including "The Devil's Kitchen," "The Pits of Hades," and "The Baby Grand Canyon."

The formation holds deep historical significance. Native American tribes once used the steep ravines to drive bison during hunts, and the area later captured the imaginations of cowboys and early settlers crossing Wyoming's open plains. The dramatic terrain even served as a filming location, adding a touch of Hollywood history to this remote Wyoming landmark.

Today, Hell's Half Acre is primarily a roadside viewpoint rather than a developed park. A small restaurant and motel that once sat atop the ravine were demolished in 2005 after closing due to low visitor traffic. The cliff edge and valley floor are fenced off, so visitors can't walk down into the canyon itself. However, an interpretive sign west of where the restaurant once stood provides context about the area's geology and history.

What makes a stop here worthwhile is the sheer visual drama. The eroded formations look like something from another planet, with colors shifting through shades of red, tan, and gray depending on the light. It's a perfect stop to stretch your legs on a drive between Casper and Thermopolis or Riverton. Plan for a brief visit of 15 to 30 minutes, as the site is compact.

The area falls within Natrona County and is free to visit. There are no entrance fees, hours of operation, or reservations needed. Just pull off the highway and take in one of Wyoming's most unusual natural wonders.

Accessibility

Hell's Half Acre is an undeveloped roadside viewpoint, and visitors should set expectations accordingly. There are no formal facilities, restrooms, visitor centers, or maintained trails at the site. The viewing area is accessed from a pulloff along Highway 20/26, and the terrain is natural and unimproved.

The site is fenced off, preventing access to the cliff edge and the canyon floor below. This means the experience is limited to viewing from the highway-level pulloff area and reading the interpretive sign. The ground surface around the viewing area is packed dirt and gravel, which may present challenges for wheelchair users or those with mobility aids, particularly after rain.

Parking is informal along the highway shoulder or in the cleared area near the interpretive sign. There are no designated accessible parking spaces, curb cuts, or paved pathways. Visitors who remain in or near their vehicle can still enjoy impressive views of the formation from the road level.

There are no restrooms, water fountains, or shade structures at the site. The nearest services are in Casper (about 40 miles east) or the small communities along Highway 20/26. Visitors should plan accordingly by bringing water, sun protection, and any supplies they may need.

For the most current information about site conditions and access, contact the Natrona County government or the Casper Area Convention and Visitors Bureau. Conditions at this remote, undeveloped site can change with weather and seasons.

More accessible places in Wyoming

• Grand Teton National Park (Moose)
• National Museum of Wildlife Art (Jackson)
• Devils Tower National Monument (Devils Tower)
• Fort Laramie National Historic Site (Fort Laramie)
• Cheyenne Botanic Gardens (Cheyenne)
• Heart Mountain Interpretive Center (Powell)