2.4 USGS

The National Map is a suite of products and services that provide access to base geospatial information to describe the landscape of the United States and its territories

We take care to use shaded relief and 40 foot contours from the USGS. Shaded relief and contour shapefiles are available at the National Map.

A project that shows how to process GeoPDFs from the USGS and USFS. —  RobLabs.com/gdal-geopdf

USGS also does frequent updates. As well they sell paper maps online.

Raw Contour Data

Shaded Relief and other Layers

  • Orthoimage
  • Hydrography
  • Contours
  • Shaded Relief
  • Geographic Names
  • UTM

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