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Map Releases

Our programs produce accurate geologic maps and 3-D geologic frameworks that provide critical data for sustaining and improving the quality of life and economic vitality of the Nation. 

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Well yields and chemical quality of water from water-table aquifers in the greater Denver area, Front Range urban corridor, Colorado

Knowledge of the well yields and chemical quality of water from water-table aquifers is useful to State and local officials in making decisions on land use and in locating water supplies in the rapidly urbanizing greater Denver are. This report presents the results of a 2-year investigation to obtain this knowledge and to relate the results to urban planning in the greater Denver area. The report

Aeromagnetic map of South Carolina

No abstract available.

Aeromagnetic map of South Carolina: In color

No abstract available.

Carolina Trough structure contour maps

Four strong reflection horizons identified on multichannel seismic-reflection profiles of the U.S. continental margin east of the Carolinas have been traced and contoured (maps A-D).  Depths, in kilometers, to the horizons were calculated by the method of Taner and Koehler (1969) using the reflection-time and RMS (root-mean-square) velocities from multichannel velocity analyses.  The contoured hor