Maps and geospatial data for (a) geology; (b) tectonics; (c) isostatic gravity anomaly; (d) aeromagnetic anomaly; (e) depth to pre-Cenozoic basement.

Gridded data used to revise base of aquifer, with supporting elevation data.

This large producer of mercury operated from 1933 to 1971. As part of remediation work, this survey used electromagnetic methods to study subsurface resistivity.

Geologic units, structural features, drill hole locations, and structure contours

Magnetic and gravity anomaly and structure contour data