The Calumet Mining and Refining Company records (1927-1980s) contain information about several mining plants throughout Utah and Nevada. It also has information about mined materials and mining methods. Many of the materials also pertain to the Combined Metals Reduction Company.

The Capitol Hill collection (1980-1991) contains information about the designation of Capitol Hill as a historical district. The records include correspondence between the Capitol Hill Community Council, residents and the city council. Also included are newsclippings, public hearing notices, and reports.

The Capitol Hill Community Council records (1989-1990) consists of documents pertaining to projects involving this organization.

The Capitol Reef National Park records (1880-1999) consist of photocopies of material collected by Park Service employees at Capitol Reef National Park, and include correspondence, reports, articles, news clippings, notes, maps, biographies, and autobiographies relating to the establishment of Capitol Reef National Park and the development of the surrounding landscape.

The Thomas R. Carlson papers (1909-1997) consists of correspondence, notebooks, reports, essays, and articles written or collected by Thomas Carlson on topics in mining engineering. Carlson is a mining engineer who spent most of his career working in various capacities for the Kennecott Copper Corp.

The Arthur L. Chaffin papers (circa 1920-1976) contains correspondence, financial records, mining documents, and other records concerning Chaffin's owning and operating of the Chaffin Ferry and his mining career. Arthur L. Chaffin operated the ferry across the Colorado River at Hite, Utah until the site was covered by Lake Powell in the 1960s. He was also extensively involved in mining in southeastern Utah.

The Carl J. Christensen papers (1851-1976) consist mainly of writings by Christensen and others on crystals and ideas of Native Americans in LDS Church history. Carl J. Christensen (b. 1901) was a chemistry professor and engineer and member of the LDS Church.

The Civilian Conservation Corps (CCC) Camp of Vernal records (1937-1939) consist of reports, handbooks, manuals, pamphlets, essays, program outlines, and theses. The CCC (1933-1942) was part of United States President Franklin D. Roosevelt's New Deal and was engaged in nature conservation activities.

The Walter Gordon Clark papers (1909-1983) consists of correspondence, consulting notes, product reports, and patent certificates pertaining to Clark's steel production company, Clarkiron, Inc. Also included are writings by Clark and a curriculum vitae.

The Classics Club records (1931- 2005) contain the organizational papers of this women's literary group based in Salt Lake City.

The Cleofan records (1892-2009) contain the organizational papers of this women's social group based in Salt Lake City.

The Lloyd Conyers report (circa 1935) is typewritten and entitled "Strivings On Salt Water: Surveys on Great Salt Lake October to December 1934." This is a survey for a diking project along the Great Salt Lake's west shore.

The Bernice Cook papers (1972-1991) consist of genealogy materials; reports and meeting minutes of community organizations; copies of laws, regulations, and government publications concerning community development; materials related to the administration of community development block grants; and news clippings. Bernice Cook is a community and neighborhood activist in Salt Lake City.

The Deedee Corradini papers (1960-2013) consist primarily of materials on the 2002 Olympic Games, including brochures, pamphlets, reports, and bid books. Also included are materials relating to her campaign. Dee Corradini was elected mayor of Salt Lake City in 1991 and served two consecutive terms. She was instrumental in bringing the 2002 Winter Olympic Games to Salt Lake City.

The Denver & Rio Grande Western Railroad records (1923-1983) contains correspondence, reports and ledgers of accident investigations and property claims, and general insurance schedules. Also included in the records is a press release concerning the reopening of the railroad following the Thistle landslide in 1983.

The Deseret Chemical Depot collection (1942-1943) contains documents regarding the establishment and founding of the Depot.

The Gale Dick papers (1985-1990) consist of committee and organizational work Dick did with the Salt Lake City Olympic bid effort, beginning in 1985. Included are correspondence, minutes, studies, reports, brochures, news clippings, and other papers.

The John A. Dixon papers (1930-1994) contain correspondence, notes and notebooks, copies of publications, clippings, and miscellaneous personal materials. John A. Dixon served as dean of the University of Utah College of Medicine.