Unlike the web app, there doesn’t appear to be a way to save a static KML file for a control station, though you can save the network link for that search result. Note that you have to click on Query Setup to specify search conditions, and then check the box in the Place pane to view them. NGSCS – National Geodetic Survey Control Stations. Rings show up in a separate folder called “Saved Places” right-click on that folder and choose “Save As”, and you can save the rings as a static KML file for future use. RINGS – Easy range ring generator for Google Earth: PLSGE– Township/range/section/quadrant/subquadrant, meridian and special survey overlays: MagDec– Magnetic declination for any point in the world: The color relief is pretty low-res, though, and the B&W relief appears to be based on unpatched SRTM data, as it has a fair number of holes: Also has overlays for aerial digital orthoquads (color and B&W), and shaded relief maps (color and B&W).
QUADS – Displays an index for USGS quad maps, and also the maps themselves as an overlay. Poking around their site further, turns out they have a page called Earth Survey, a set of KML network links that installs those features into the stand-alone version of Google Earth, plus additional links that offer data not found in that web app. Two weeks ago, I posted about a web app from Metzger and Willard that offers useful info like PLSS data and a topo quad index in a Google Earth plugin interface.
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