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The 'Yuma County General - Bonanza' file is part of the Grover Heinrichs mining collection. Grover was the Vice President of Heinrichs GEOEXploration, located in Tucson, Arizona. The collection contains over 1,400 folders including economic geology reports, maps, photos, correspondence, drill logs and other related materials. The focus of much of the information is on the western United States, particularly Arizona, but the collection also includes files on mining activity throughout the United States, foreign countries, and 82 mineral commodities.


map background search result map search result map Santa Rita Limestone Quarry, Geologic Map Geology Map of the Day Project Collins Claim Group, Preliminary Composite Map Christmas Mine Area, Topo Survey 5 Christmas Area, Topographic Survey Sheet 3 I.P. Work Map San Simon, Magnetic Interpretation Tombstone Topographic Map Showing Southern Tombstone Safford, Magnetic Interpretation S.G. Claims, Topographic Map Plate 3 Christmas Mine Area, Topo Survey 6 Hilltop Claim Group, Geologic and Topographic Map Oregon Mine, Surface Plan Vulture Mine Project, Composite Surface Map Western End of the White Mesa Copper District Savage Claim Group Geologic Map Cactus Area, Miami Vicinity, Topographic Location Map Tombstone Topographic Map Gibson Mine, I.P. Plan Location Part 3 Cooper Aerial Survey Co. Map for PBR Minerals, Inc., Sheet 3 of 4 Grover Heinrichs mining collection: Yuma County General - Bonanza S.G. Claims, Topographic Map Plate 3 San Simon, Magnetic Interpretation Cactus Area, Miami Vicinity, Topographic Location Map