Land Information of New Zealand has made available a great set of 1:50,000 scale Topographic Maps available online. I downloaded all 455 of the maps covering the main island of New Zealand and converted them to a seamless Google Earth overlay.
The maps show roads, placenames, contour lines, elevations points, etc, . . . → Read More: New Zealand Topographic Map
I have had many requests over the years to add a USGS topographic Map overlay without the map borders. This is a huge project and I have finally decided to move forward with it.
You can read more about this project below, or skip right to the store and purchase them.
. . . → Read More: Seamless Topographic Maps for Google Earth
Seamless Topographic Map Mosaics are great for planning hiking/bicycling trips, environmental research, land use planning, and many other uses. They also make a great base map for using Google Earth in off-line mode for those times when a high speed wireless connection is not available.
The maps are available in downloadable bundles . . . → Read More: Seamless Topographic Maps for Google Earth
Update 11/28/2011 Seamless Topo Maps - I have released a seamless version (without the map borders) version of the USGS Topographic Map layer for Google Earth. In addition to removing the map borders, hill shading has been added using the 10-meter National Elevation Dataset (NED), which greatly enhances the topography and makes it possible . . . → Read More: USGS Topographic Maps
**UPDATE 8/13/2011** – I have made a couple important updates. First, I have released a global version of the very popular 90-meter terrain map. I have also relaxed the licensing restrictions to allow for commercial use. See below for more details on both of these changes.
There are many ways to . . . → Read More: Terrain Maps
The Perry-Castaneda Library Map Collection at the University of Texas at Austin has begun an ambitious project to scan all available pre-1945 USGS topographic maps for all US states that don’t currently have them available online. They are starting with Texas and working their way out from there. As of today, Texas, New . . . → Read More: Nationwide Historic USGS Topo Map Scanning Project