Pennsylvania: Howard Quadrangle - Hannegan, Duncan; Wilcoxon, R. F.; Fowler, A. T.; Chenoweth, W. R. ([Washington, D.C.] : U.S. Geological Survey, 1923)
United States. Geological Survey.
U.S.G.S.
Alternate title: Howard, PA. Polyconic projection. Relief shown by 20 feet contour interval and spot heights. Surveyed in 1921. Verso: The topographic maps of the United States.
In English.
Keywords: Topographic maps; Howard; U.S.--PA--Howard Quad; U.S.--PA--Clinton Co; U.S.--PA--Center Co