US Topo Quads

Current GeoPDF (which is actually a combination of vector and raster data)

USDA Forest Service Quads, GeoPDF and Geotiff both collared and uncollared

• https://data.fs.usda.gov/geodata/rastergateway/states-regions/states.php
• https://www.fs.fed.us/visit/maps

Historical

• https://nationalmap.gov/historical/
• https://ngmdb.usgs.gov/maps/topoview/viewer/#4/48.49/-100.06
• Available as KMZ (easiest option, probably adequate resolution), GeoPDF (challenging option), and Geotiff (good option)
• Geotiff must be untiled with GDAL
• Geotiff must be warped to UTM with GDAL

DRG--Digital Raster Graphic, a scanned map.

• http://libremap.org/  (TIFF, and not much activity in quite some time)
• Also check state GIS site.

Vector alternatives

• TIGER
• OpenStreetMap
• Topo Map Data and Topo Stylesheet from https://viewer.nationalmap.gov/basic/#productSearch
  • Has the vector data for the 7.5 minute quads
  • Need to uncompress each into its own directory, since the file names are all the same
  • https://viewer.nationalmap.gov/tools/topotemplate/contents/TopoTNMStyleTemplateFAQ.pdf

Other Historic map scans

Last revision 7/28/2017