![]() Record Group 75: Aerial Photographs, 1947 Contained are aerial and other photographs, contour information, information on slope conditions, and information on ore extraction. This series consists of photographs, maps, charts, graphs and correspondence pertaining to the San Manual copper mine in Pinal Canyon, Arizona. Record Group 70: Photographs, Maps, Charts, Graphs and Correspondence, 1957 - 1961 This series consists of research reports, including aerial photographs and precipitation charts pertaining to New Mexico, Texas, and Arizona. The finding aid for the series is available at NARA at Denver. Record Group 54: Research Reports, Including Aerial Photographs and Precipitation Charts, 1934 - 1941 The files include classification data, inspection reports, maps, and aerial photographs. This series consists of resource studies, inventories, and surveys, primarily for grazing allotments in western Colorado. Record Group 49: Resources Inventories, Studies, and Surveys, 1922 - 1982 Topics covered include forage, hydrology, arid regions, ecology, proposed primitive areas, and designated wilderness areas. Types of records include reports, maps, management plans, conclusions, correspondence, aerial photographs, and memorandums. This series consists of records related to resource inventories, studies, and surveys. Record Group 49: Records Relating to Resource Inventory Studies,. The finding aid for the series is available at NARA at Denver. Record Group 49: Records Related to Resource Inventories, Studies, and Survey Files, 1979 - 1990 Also included occasionally are notations on expenditures, documents detailing problems associated with the survey, and annotated plats and aerial photographs. If the survey was protested, the file also includes correspondence concerning the protest, depositions relating to the conduct of the survey, and explanations of conditions by the surveyors. Also included are correspondence received from and copies of answers sent to land owners concerning the impact the resurvey would have on their holdings. Typically included in a file are lists of the existing land use entries within the survey area papers authorizing the survey special instructions with occasional supplements which often include a history of the surveys of the area, procedures to be followed, and diagrams and drawings lists of equipment issued to the survey party original and copies of correspondence relating to the survey field notes and drawings with notations about the survey work. These particular surveys are generally "dependent resurveys" conducted at the request of the Forest Service, the Grazing Service, or the U.S. This series consists of group survey files compiled by field survey parties under the contract system initiated in 1910. Record Group 49: Group Survey Files, 1933 - 1966 This series consists of aerial photographs. : View from stratosphere bowl of Project camp Record Group 49: Aerial Photographs, 1948 - 1960
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