USEFUL LINKS

USGS National Geologic Map Database
USGS National Map Viewer (many available basemaps and layers, including hillshade, slope map)
FEMA National Flood Hazard Layer Viewer
USGS National Water Dashboard (real-time surface, precip, water quality, and groundwater information)
NRCS Web Soil Survey (valid for only the uppermost 5 to 6 feet below the ground surface)
USGS Real-Time Earthquake Map
USGS Unified (seismic) Hazard Tool 
National Mine Map Repository Web Map (Pilot program as of April 2025, but provides links to many mine maps)
Google Earth Pro