The Beaver Creek Ranch Headquarters, in the vicinity of Buffalo in the Powder River Basin in Johnson County, Wyoming, was listed on the National Register of Historic Places in 2014.

The ranch represents traditional Spanish sheep management practices that developed in Wyoming, rather than the English system utilized in the early Atlantic colonies.

In Wyoming, large herds of sheep were grazed by individual herders across the public domain rather than in fenced pastures.

Because of its proximity to the Bighorn Mountains, the practice of transhumance was incorporated into yearly sheep management.

Flocks were trailed into the mountains during the summer months to take advantage of abundant water and forage.