KMZ and KML files contain place markers, images, polygons, 3D models, textual descriptions, etc. for display in Google Earth.
Google Earth – Link to download Google Earth.
Benchmark Hunter Tools – This KMZ is a useful tool, displaying USGS Topographic Maps as well as NGS Survey markers.
CORS – This KMZ includes all of the Continuously Operating Reference Stations (CORS) in the USGS network.