Scale approximately 1:1,230,000 (W 79°15ʹ--W 74°41ʹ/N 42°00ʹ--N 39°43ʹ).
Note
Shows population density at the township level centered on Selinsgrove, with 50-mile and 100-mile radial distances shown to highlight density within those areas. "Source: U.S. Department of Commerce, 1970 Census Report (Bureau of the Census)." Publication date inferred from local call number.