The ranch structures date to the 1880s, part of a ranching operation established around 1883 by three English immigrants: Harry Jevons, Richard Ashworth and Richard Berry.

After a series of transactions between the partners the property was deeded to Ashworth by Jevons to secure a $4747.62 loan.

Other buildings include a bunkhouse, an icehouse, a blacksmith shop and a dugout.

[2] The ranch is associated in oral tradition with Butch Cassidy, who was supposed to have had an interest in the land in the 1890s, but no records apart from an account by Cassidy's sister Lulu Parker Betensen attest to this.

The ranch was acquired by Emil Thoren in 1907, whose family kept it through much of the 20th century.