Mount Jefferson is located in the Cascade Range between Mount Hood and Three Sisters.
From USGS.gov: Mount Jefferson (3,199 meters - 10,495 feet) is a prominent feature of the landscape seen from highways east and west of the Cascades. Mount Jefferson (one of thirteen major volcanic centers in the Cascade Range) has erupted repeatedly for hundreds of thousands of years, with its ...
Hoover Field was the first airport for Washington, D.C. which opened in 1926. It was located in Arlington, Virginia, near the intersection of the 14th Street Bridge and the George Washington Parkway where the Pentagon now stands. In 1930 Hoover Field was sold and then merged with the nearby Washington Airport to form Washington-Hoover Airport. Washington Hoover Airport closed in 1941 when Washi...
The Jefferson Barracks Military Post, located on the Mississippi River just south of St. Louis, Missouri, was an active U.S. Army installation from 1826 through 1946. http://en.wikipedia.org/wiki/Jefferson_Barracks
This Google Earth model was done in SketchUp, which has recently added functrions that make transferring data to and from Google Earth ALMOST seemless. Also, it is one of the better 3D models of the St. Louis / Jefferson National Expansion Memorial Gateway Arch I have seen.
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