4
votes
2answers
198 views

GPS topo map downloads

I know the USGS and many others offer free downloadable raster topo maps for almost anywhere. But what if I want vector maps using GPS coords? I'm new to GIS but I would assume there is a de facto ...
12
votes
4answers
325 views

What alternative topographic maps exist in the USA?

This answer recommends topographic maps as downloadable from the USGS. A comment holds that those are definitely the best thing for the US. An except for the San Joaquin river near Mammoth Lakes ...
11
votes
6answers
224 views

Looking for a Topographical map resource?

Does anyone know of a good way to find topographical maps for either download or purchase?