Established by Canadian fur trader Johnny Grant, and expanded by cattle baron Conrad
Kohrs, Grant-Kohrs Ranch National Historic Site commemorates the Western cattle industry from its 1850s inception through recent times. The park was created in 1972, and embraces 1,500 acres (6.1 km2) and 90 structures. The site is maintained today as a working ranch by the National Park Service. The ranch was designated a National Historic Landmark on December 19, 1960.
Conrad Kohrs ventured into the Sun River
Valley west of Great Falls
looking for more grazing land. He was impressed by what he saw in this lovely valley. It looked like a cattleman's paradise. The waters of the Dearborn and Sun Rivers were sweet, sparkling, and clear. The river bottoms had lush grassy meadows and the benchlands rolled on both sides of the rivers.Kohrs brought in several thousand steers from his Deer Lodge
ranches to fatten on the rich grasses of the Sun River Valley.