The Tim DeChristopher protest collection (2011) consists of flyers and brochures announcing protests in solidarity with Tim DeChristopher. DeChristopher disrupted a U.S. Bureau of Land Mangement oil and gas lease auction December 19, 2008, in Salt Lake City, Utah. A federal grand jury handed up a two-count felony indictment against DeChristopher that accused him of violating the terms of the auction he promised to observe when he signed up to bid.

Timothy Mansfield “Tim” DeChristopher (1981-) is an environmental and climate activists who was arrested and sentenced to two years in federal prison for disrupting a United States Bureau of Land Mangement oil and gas lease auction December 19, 2008, in Salt Lake City, Utah. This collection contains color photographs documenting DeChristopher's protest and sentencing.

The Preston Nutter Corporation records (1876-1981) document over one hundred years of ranching in Colorado, Arizona, and Utah. The records cover virtually every aspect of cattle ranching, from the buying, selling and shipping of cattle; to the acquisition of land, water, and grazing rights; to the wages and injuries of ranch hands. Also covered are many aspects of the private lives of the Nutter family.