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You searched for: Resource Class Web services Remove constraint Resource Class: Web services Time Period 1950-1999 Remove constraint Time Period: 1950-1999

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1.

Census Tracts: Washington, D.C., 1950 university-of-maryland

1950. DC GIS. Census Year 1950 Census Tracts. The dataset contains polygons representing CY 1950 census tracts, created as part of the D.C. Geographic Informatio...

6.

Baist Index (1959): Washington, D.C. university-of-maryland

1959. DC Office of Planning. The Baist Index provides a mapping index that mirrors the hardcopy index in the original Baist Map Volumes. The Index was hand digitized from the o...

7.

Census Tracts: Washington, D.C., 1960 university-of-maryland

1960. D.C. Office of the Chief Technology Officer. Census Year 1960 Census Tracts. The dataset contains polygons representing CY 1960 census tracts, created as part of the D.C. Geographic Informatio...

10.

PLSS Indian Treaty Boundary Lines [Illinois] university-of-illinois-urbana-champaign

1968. Illinois State Geological Survey. Indian Treaty boundary lines from the Illinois Public Land Survey System. ISGS, 1984 (revised 2003). Illinois State Geological Survey.