Nearly 124,000 high resolution scans of the more than 200,000 historical USGS topographic maps, some dating as far back as 1884, are now available online. The Historical Topographic Map Collection includes published U.S. maps of all scales and editions, and are offered as a geo-referenced digital download or as a scanned print from the USGS Store.
- Nationally consistent data quality assured to high standards
- Looks and feels like legacy paper USGS topographic maps but has technical advantages
- Can be used on the computer or printed to scale
- Downloadable free from the on-line USGS Store
- Users can select from various reference systems, e.g lat-long, UTM (Universal Transverse Mercator)
- Direct "mash-up" capabilities with Google Maps®
- Continuous evolution and incorporation of additional data layers.”
Further information about how to download and use US Topo, currently available coverage, and the timetable for production of US Topo maps can be found online at: nationalmap.usgs.gov/ustopo .
The prototype of US Topo, Digital Map – Beta, has been available since June 2009. A US Topo map includes all of the content of the earlier Digital Map – Beta plus integrated contours and hydrographic features. As the US Topo product evolves, the USGS will provide digital, historical versions of USGS topographic map quadrangles and will incorporate additional geographic data layers from The National Map.
Public feedback about US Topo will assist the USGS in improving the US Topo concept. Send comments to: nationalmap.usgs.gov/ustopo/ustopo_feedback .