Usgs Maps. They were essential for integrating and analyzing place-based information and were widely used by receationalists. USGS Maps Search Powered by ScienceBase.
In 1879 the USGS began to map the Nations topography. Click to go to the collection page for USGS DRG maps of all 50 states. As the years passed the USGS produced new map versions of each area.
The maps provide a very useful basemap for a variety of applications particularly in rural areas where the topographic maps provide unique detail and features from other basemaps.
1-888-ASK-USGS 1-888-275-8747 Option 1 General Information about Federal Recreation Passes Option 2 Product Ordering and Questions About Current Orders Option 3 Information about Maps and Other Products or to Speak to a Science Information Delivery Specialist Option 4 Information about Aerial Photography or Satellite Imagery. The geology compiled by Th. Digital geologic maps of the US states with consistent lithology age GIS database structure and format Data for the District of Columbia is included with Maryland. Since the 1800s the USGS and its partners the State Geological Surveys have been producing high quality standardized geologic maps of the Nation.
