Title in lower margin: Litchfield Co., Conn. : N4128-W7253/35.5 x 38.5, 1976. "Compiled by USGS in 1976 from USGS 1:24,000-scale topographic maps dated 1955-1972." "Planimetry revised from aerial photographs taken 1974." Available also through the Library of Congress Web site as a raster image.
United States. Soil Conservation Service; Geological Survey (U.S.)
1976
<a rel="nofollow" class="external free" href="https://www.loc.gov/item/81690029/">https://www.loc.gov/item/81690029/</a>