Welcome to The National Geospatial Program
Your Source for Topographic Information
3D Elevation Program - Your Source for 3D Elevation Data
3DEP - Get involved, Get data, Learn about applications and benefits
The National Map's Hydrography Data
National Hydrography Dataset (NHD) & Watershed Boundary Dataset (WBD)
Historical Topographic Map Collection
Historical Topographic Maps - Preserving the Past
US Topo maps can be downloaded free of charge!
National Geospatial Program
The mission of the National Geospatial Program is to provide National topographic information to advance science, support government, enlighten citizens, and enable decision making. The NGP provides a foundation of digital geospatial data representing the topography, natural landscape, and manmade environment of the United States.