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Federal
Digital Surficial Geologic-GIS Map of Herbert Hoover National Historic Site and Vicinity, Iowa (NPS, GRD, GRI, HEHO, HEHO_surficial digital map) adapted from Iowa Geological Survey Open-File Maps by Tassier-Surine, Krieg, Quade, Bettis, Artz and Giglierano (2004), by Quade, Tassier-Surine, Giglierano and Bettis (2008), and by Krieg, Tassier-Surine, Quade, Bettis, Artz and Giglierano (2004)
Department of the Interior —
The Digital Surficial Geologic-GIS Map of Herbert Hoover National Historic Site and Vicinity, Iowa is composed of GIS data layers and GIS tables, and is available in... -
Federal
Digital Bedrock Geologic-GIS Map of Herbert Hoover National Historic Site and Vicinity, Iowa (NPS, GRD, GRI, HEHO, HEHO_bedrock digital map) adapted from Iowa Geological and Water Survey Open-File Maps by Witzke, Anderson and Pope (2010), and Witzke and Anderson (2008)
Department of the Interior —
The Digital Bedrock Geologic-GIS Map of Herbert Hoover National Historic Site and Vicinity, Iowa is composed of GIS data layers and GIS tables, and is available in...