Sanson Ranch Information

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(video caption) A short video about a possible bison jump in Wind Cave National Park and the archaeological research that occurs there.

Buffalo Jump at Wind Cave National Park
Buffalo Jump at Wind Cave National Park

NPS Photo by Tom Farrell

On October 6, 2011 Secretary of the Interior Ken Salazar announced that the National Park Service has acquired 5,555 acres of former ranchland, including a thousand-year-old buffalo jump and an historic homestead, that will become part of South Dakota's Wind Cave National Park. "The addition of this historic ranch to the park will help ensure that people for generations to come can come to know and love this treasured landscape and have the opportunity to learn about the indigenous peoples of South Dakota," said Secretary Salazar."

President Theodore Roosevelt set aside Wind Cave as the country's eighth national park in 1903. Considered a sacred place by the Lakota, Wind Cave is one of the world's longest and most complex caves, known for its outstanding display of boxwork, an unusual cave formation composed of thin calcite fins resembling honeycombs. It was the first cave ever designated as a national park.

On the surface, the park now features more than 33,000 acres of mixed-grass prairie and ponderosa pine forest that provides important habitat for bison, elk, pronghorn, mule deer, coyotes, and prairie dogs. It is home to one of America's most ecologically-significant bison herds, which dates back to bison relocated to the park from the Bronx Zoo and Yellowstone in the early 20th century.

Native Americans hunted buffalo on the newly acquired land over a thousand years ago, driving them over buffalo jumps, or cliffs. Tipi rings provide additional evidence of Native American use of the area.

Casey Property ranch house and surrounding buildings
Casey Property Ranch House and Surrounding Buildings

NPS Photo by Tom Farrell

The tract also features one of the oldest homesteads in Custer County, South Dakota. The homestead of Carl Sanson's father and later Sanson himself is testament to the tenacity of these early homesteaders and how they protected and cared for the land.

The Conservation Fund, a nonprofit dedicated to protecting important places across America, acquired the property at auction from the Casey family last year and transferred it to the Park Service. This completes a process begun in 2000 when the family approached the service about selling the land to the park.

"We would like to thank The Conservation Fund for the critical role they played in acquiring this property," National Park Service Director Jonathan B. Jarvis said. "Because of their help, we look forward to providing educational programs about the buffalo jump and historic ranch to area school children and all our visitors."

In 2005, with support from the South Dakota Congressional delegation, Congress passed legislation to expand the park pending an appropriation to purchase the land. When the land was put up for auction by the Casey family, The Conservation Fund purchased the property to hold for the NPS until federal funding became available.

Congress appropriated the necessary funding this year from the federal Land and Water Conservation Fund (LWCF), which enables federal and state agencies to acquire lands that feature important historic, natural, scenic and economic benefits for public use and enjoyment. The fund receives significant revenue from the development of federally-owned offshore oil and gas rights.

"Over 100 years ago President Theodore Roosevelt had the foresight to protect Wind Cave," said Larry Selzer, President and CEO of The Conservation Fund."Thanks to the outstanding bi-partisan leadership of the South Dakota Congressional delegation and the dedication of the National Park Service, we celebrate this achievement to preserve our nation's treasured lands for generations."

Park staff will now start the public planning process to allow visitors to experience this new land. This year-long process, a Visitor Access Plan/Environmental Assessment, is expected to begin this fall and will determine, among other things, where and if hiking trails will be constructed. Broader planning over the next year will address how to comprehensively integrate this land into the rest of the park and address whether or not any new visitor service facilities are needed and whether or not existing wildlife management plans are adequate.

"We are initiating a thorough process to develop a management plan for the land that will involve many opportunities for the public to participate," said park superintendent Vidal Davila."In the meantime, we are looking at ways to get people out on the land so they can help with the planning process." A public dedication for the new land was held October 15, 2011.

Visit for photos of the dedication ceremony and new land.

Last updated: September 29, 2021

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