National Archives at Denver

Our Archival Holdings

Review a complete listing of Denver's record groups in the Guide to Archival Holdings. See below to view samples of our holdings.

Bureau of Reclamation

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President John F. Kennedy at the dedication of Fryingpan-Arkansas Project, Colorado, August 17, 1962. RG 115

The settlement of the West could not have been possible without means to bring water to the people. Several rivers flow out of the snow capped Rocky Mountains on their way to the Mississippi River and eventually the Gulf of Mexico. Harnessing that water for purposes of irrigation and public use as well as flood control has been the task of the Bureau of Reclamation. One such project is the Fryingpan-Arkansas near Pueblo, Colorado. The importance of these projects is noted by the presence of President John F. Kennedy at the dedication of the project.

The National Archives at Denver holds over 14,000 cubic feet of records from the Bureau of Reclamation documenting such projects across the country. While our holdings are usually limited to the mountain west states, headquarters for the Bureau of Reclamation are located in Denver thus providing us with their project and administrative records from across the country.

Bureau of Land Management

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Map of Public Surveys in Colorado Territory, 1866. RG 49

One of the primary motivations for the American people to move west was land; either the opportunity to purchase land or the opportunity to secure mining riches. Colorado was one such state that offered both acreage for agriculture and known deposits of gold, silver, and other valuable ores. The image is of a survey from 1866 showing the current county divisions, topography, and known ore deposits.

The Bureau of Land Management and its predecessor agencies, the General Land Office and the Surveyor General's Office, is the agency responsible for maintaining Federal land. Originally, the Surveyor General and the Recorder of the local land office worked together to survey new land and maintain records of land sales in newly established territories and states.

Using our records, it is possible to find original documents of ancestors who may have homesteaded or mined in the mountain west. We hold over 12,500 cubic feet of records from the Bureau of Land Management that document the history of federal land in the West.

U.S. Air Force Academy

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Cadet Chapel, U.S. Air Force Academy, Colorado Springs, Colorado, 1962. RG 461

With 17 aluminum spires soaring 150 feet high, the Cadet Chapel is the most visible structure at the U.S. Air Force Academy in Colorado Springs, CO. Finished in 1963, this chapel was widely criticized by politicians and the general public for its unique architecture. Despite the early criticism, the chapel is now the symbol of the Air Force Academy.

The U.S. Air Force Academy was created by Executive Act on April 1, 1954. The Academy was temporarily located at Lowry Air Force Base in Denver, CO, until a permanent home could be opened in Colorado Springs in August 1958. The Academy's mission is to provide instruction, experience, and motivation to cadets in their development as career officers.

Records of the U.S. Air Force Academy are held with the National Archives at Denver. We have over 600 cubic feet of Federal records documenting the founding and operations of the U.S. Air Force Academy.

Bureau of Indian Affairs

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Albuquerque Indian School, New Mexico, ca. 1912. RG 75

In the early part of the twentieth century, the Federal Government began a system of placing of Native American children at select federal boarding schools to educate them in basic fundamentals, a vocational trade, and attempt to bring them into mainstream America. The Albuquerque Indian School was one of the larger schools in this system.

The picture shows young boys dressed in a military uniform holding American flags. The military uniform was customary among early boarding schools and followed the system established at Carlisle Indian School in Pennsylvania, the first school of its kind. The American flag is part of the children's assimilation into mainstream America.

Our holdings include records from several boarding and day schools operated by the Bureau of Indian Affairs, including the Albuquerque Indian School. This region has nearly 7,000 cubic feet of records from the Bureau of Indian Affairs which help to document the experience of the Native American and their relationship with the Federal Government.

Please Note: Our student records are subject to privacy restrictions and many are not available to the general public, please Contact Us for more information about these records. 

National Park Service

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Ty Cobb visits Carlsbad Caverns National Park, New Mexico, 1938. RG 79

Carlsbad Caverns National Park is a system of more than 100 caves located in a Permian-age fossil reef in southern New Mexico. Among the caves is Lechuguilla Cave, the deepest limestone cave and fourth longest nationwide, which measures 1,567 feet. Carlsbad Caverns National Park was first designated a National Monument in 1923 and then a National Park in 1930. The National Park Service has been tasked to protect and preserve these caves. It was designated a World Heritage Site in 1995.

The National Archives at Denver holds nearly 1,500 cubic feet of records from the National Park Service. This includes records from Carlsbad Caverns and other well known parks such as Glacier National Park in Montana, Mesa Verde National Park in Colorado, and Zion National Park in Utah. The National Archives at Denver holds records for more than three dozen National Parks and Monuments including an archival facility in Yellowstone National Park.

Naturalization Documents, Declarations and Petitions

U.S. citizenship is a prized status for all immigrants to this country. It is a renunciation of your old country and an oath of allegiance to the United States that ensures you the right to vote, buy land, and have part in all the rights afforded U.S. born citizens. The process takes several years as one has to file a Declaration of Intention five years prior to filing a Petition of Naturalization, which pronounces one a citizen.

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ID photos from citizenship papers, 1931-41. RG 21

Occasionally a picture of the applicant will be included with the naturalization papers. The photos were taken from naturalization application files and are an added bonus to the family historian tracing their roots.

Our region holds naturalization documents, declarations and petitions from the federal courts of the Mountain West states. Prior to September, 1906, it was possible to file naturalization papers in Federal courts, state courts, and county courts. Following that date, it could only be done in a federal court. We only have records for those naturalizations filed in federal courts. Most of these records have indexes that are searchable by the name of your ancestor.