Scale approximately 1:4,800 (W 77°57ʹ30ʺ--W 77°56ʹ25ʺ/N 41°02ʹ08ʺ--N 41°01ʹ18ʺ).
Note
Title supplied by cataloger. "1980 Census map." "Additional areas may be designated "urbanized" and some census designated places may be deleted based on analysis of the final 1980 census data." "1980 Census Map Inventory Number, 42-7858-01."