2 posts tagged with topo.
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Backpacking with your iPhone

How to use your iPhone GPS for backpacking including reviews on most of the relevant GPS, topo, and navigation related apps available for the iPhone.
posted by stp123 on Jul 13, 2012 - 31 comments

The National Map (US)

"The U.S. Geological Survey has just released more than 161,000 digitally scanned historical maps spanning in excess of 130 years and covering the lower 48 states. This Historical Topographic Map Collection provides a comprehensive repository of the landscape of our Nation..."
posted by Miko on Apr 20, 2012 - 19 comments

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