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Topo Maps - USGS Topographic Maps on Google Earth.
A user account is not needed
for the features on this web page.
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Click for larger image.
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Displays USGS Topo Maps on Google Earth. For USA only.
In the western states, the topo map includes township and range markings, which
can be helpful when trying to sort out questions in the BLM data.
Is your map blurry?
On my PC, which runs Windows 7, switching Google Earth's video mode from DirectX
to OpenGL fixed the problem. From the Google Earth menu, click "Tools", "Options",
then "OpenGL" in the upper right corner of the pop-up window. You will need
to restart Google Earth to see if there is an improvement.
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DirectX - blurry
Click for larger image.
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OpenGL - clear
Click for larger image.
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Hint
Once the topo map is downloaded to Google Earth, its transparency can be adjusted
to let the satellite imagery show through.
- On the left side of the Google Earth screen are several windows. These are "Search",
"Places", and "Layers". If you do not see these widows, then on the Google Earth
menu, select "View", "Sidebar".
- The "Places" window is a folders view of the files that are loaded into Google Earth.
- In the "Places" window, find the folder called "Earth Point Topo Map". Unless you
have moved it, the folder is at the bottom of the "Places" window.
- Select the folder. One way is to left-click on the folder. A description box titled
"USGS Quadrangles" pops up. Close it by hitting the "Esc" key on your key board,
or by clicking anywhere on the Google Earth map. The folder is now selected.
- At the very bottom of the "Places" window, just above the "Layers" window is a slider
bar.
- Slide the bar to the left to make the topo map more transparent, to the right to
make it more opaque.
- In the very latest Google Earth, version 6.1, both a search window and a slider
bar are at the bottom of the "Places" window. On the left side of the search window/slider
bar are two icons. In order to use the slider bar, first click on slider bar icon.
Information: Topo Maps
Data provided by United States Geological Survey
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