GPS, Map and Google Earth

The following links are sources of free various maps including GPS map.

http://mapcenter.cgpsmapper.com : a place where you can share your maps for Garmin GPS receivers and find maps created by other GPS enthusiasts from all over the world. All uploaded maps that can be found here are free at least for personal use and are ready to be uploaded to your Garmin receiver

http://www.lib.berkeley.edu/EART/MapCollections.html: Unlike the United States (where digital maps are readily available), in other parts of the world, accurate maps are considered essential to national security and can be difficult to obtain. You can download topographic maps for many countries

http://www.doylesdartden.com/gis/ : David Doyle is an environmental geologist who maintains an extensive list of U.S. digital map resources. His list at this site is organized by state. You’ll find hundreds of links for aerial photographs, topographic maps, geological maps, and many other different types of digital maps.

http://www.macgpspro.com/index.html: James Associates makes MacGPS Pro, a product for interfacing GPS receivers. The company hosts a list of United States and international free map
sources.

http://www.lib.utexas.edu/maps/: other favorite academic map site is the University of Texas at Austin’s Perry-Castañeda Library Map Collection. This site has an extensive collection of online maps (as well as links to sites that host maps) for countries and places all over the world.

http://oddens.geog.uu.nl/index.php: The most comprehensive collection of map links on the Internet is Odden’s Bookmarks. This European Web site has over 20,000 links to maps and map sites all over the world.

* some of the information for the free maps link are modified from GPS for Dummies Books by Joel McNamara