Geologic maps and specialty reports
The USGS has published tens of thousands of geologic maps and reports since 1879. These maps are available as single or multiple sheets, many of which are folded and placed in a paper jacket. The majority of these maps are out of print and can only be obtained through borrowing privileges at one of the few USGS libraries across the nation.
The information contained on these maps and in these reports are useful to geologists, oil and gas exploration companies, coal investigators and land use planners. Geologic maps help delineate fragile habitat and ecosystems, protect against natural hazards, and find needed resources.
Some of the maps/info that DDS has direct access to due to our close proximity to the USGS and special privileges.
Geologic Quadrangle Maps- The Geologic Quadrangle (GQ) Series has more than 1,700 multicolor maps that show the bedrock, surficial, or engineering geology of selected 7.5- or 15-minute quadrangles in the United States.
Oil and Gas Investigations Maps and Charts- The Oil and Gas Investigations Maps (OM) Series and Charts (OC) Series show the subsurface structure and stratigraphy and surface geology of selected oil and gas fields and of other areas having hydrocarbon potential.
Miscellaneous Investigations Series Maps- The Miscellaneous Investigations (I) Series contains mostly multicolor maps covering diverse topical material such as bedrock and surficial geology, marine geology, mineral and energy resources, and geophysics and geochemistry. The series also includes maps of the Earth's Moon and other planetary bodies, hydrogeology, landforms, earthquake epicenters, map projections, and oblique-view maps.
Coal Investigations Series Maps- The Coal Investigations (C) Series contains multicolor or black-and-white geologic maps that show bedrock geology, stratigraphy, and structural relations of selected coal resource areas of the Nation.
State Geologic Maps- The USGS has compiled multicolor geologic maps in cooperation with about a third of the states. Most other states have prepared and made available their own state geologic maps. Many of these state-published maps are available at the USGS Map Library.
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