1943 GS-AU
The 1940 GS-AU vertical, black and white (panchromatic) aerial project was acquired by the U.S. Geological Survey (USGS) at a scale of 1:20,000 (1 inch equals 1667 feet).
The 1940 GS-AU vertical, black and white (panchromatic) aerial project was acquired by the U.S. Geological Survey (USGS) at a scale of 1:20,000 (1 inch equals 1667 feet).