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16 Free GPS Map Data Sources

Free GPS Maps, GPS Downloads | | May 11, 2008 at 3:19 pm
Here is a list of 15 free GPS map data sources for you. If you know more, please post a comment and I will update this index.
1. Seamless.usgs.gov
USGS Elevation data for making contours (this site goes down often, just try again later). Now also has now some global data.
2. Ibycus
Dale has custom software and is cranking out topo maps of Canada and the US!!
3. Nhd.usgs.gov – Awesome water feature data from the USGS!
4. MapCenter
Perhaps someone has made ‘your’ map already.
5. Data.geocomm.com
Good source for roads, boundaries, and many others.
6. University of Arkansas
I’ve seen many lists of free downloadable map data but this one is impressive.
7. POI (Points Of Interest) coordinates from the USGS. Download by state and import them into your map.
8. National Map Viewer
USGS has made a one-stop shop for elevation, water, road data and much more. It points to the same data server as Seamless and NHD.
9. Geodata.gov: Another one-stop shop for all data types.
10. A bunch of downloadable posters are available… way cool!
11. National Atlas – Download the various shapefiles used in the National Atlas project.
12. “ENC direct to GIS” – NOAA nautical chart data.
13. Geobase
Canadian data
14. National Park service
Some trail data (note that trail data is very hard to find). If you have a paper map you can try contacting the maker and ask for their trail shapefiles.
15. Geocommunicator.gov
Federal lands survey data (BLM).
16. Get coordinates of any place. Based on Google Map.
You can suggest (post a comment) more sources of GPS map data to make this listing more useful.

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