A)Topographic Maps Overlay Google Earth Google Earth Topo Maps
B)Topographic Maps Overlay in Google Earth earthtopomaps
C)Google Earth Topo Maps
D)Topographic Maps Overlay in Google Earth
E)Earthtopomaps Earthtopomaps Topographic maps overlay in Google Earth
Topographic maps provide detailed information such as land use. Feature names. The locations of natural features. And topographic elevation contours. There are over 50,000 7.5-minute topo maps covering the entire United States (except Alaska. Which is covered in a larger scale). The topographic maps come in a variety of scales, with the most detailed typically being the 7.5-minute version, meaning each map covers an area of 0.125 x 0.125 degrees. This collection of maps lets you easily view all 50,000+ of the 7.5-minute. USGS topographic maps in Google Earth.
The maps in this collection typically date from around 1978 to 2005. The USGS is constantly updating the topographic maps and it seems to take them about 15 to 20 years to get around to updating each individual map. I also have a separate collection of Historic. USGS Topographic maps for Google Earth.
Each topographic map has been converted to a single Google Earth KMZ file. Which is typically about 1-5 megabytes. The maps include the collars (borders), which have information such as the date of the map and the source of the data found on the map. Topographic Maps Overlay Google Earth
The topo maps are accessed by a very simple index. Just zoom in until the blue and green outlines become visible. Then click on the box for the Topographic map you wish to view to bring up the balloon with some information about the map and a. View Map button. Click on the View Map button and after a few seconds (where it will look like nothing is happening). The map will appear in Google Earth.
F)Earthtopomaps Topographic maps overlay in Google Earth