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Start Over Year 1980 Bounding Box -40.000931 39.999015 -39.999064 40.000987

101. Second-Degree Trend-Surface Map, Canton OH/Clarksburg WV

Maps The Ohio State University Public content
1980. Struble, Richard A. "Areal density of photo linears occurring within a 5000 meter square grid." Base map: USGS Cleveland, Ohio; Pa., U.S., Ont., Can. (4th ed. 1972 rev... Ohio. Division of Geological Survey.

102. Second-Degree Trend-Surface Map, Cleveland OH/Huntington WV

Maps The Ohio State University Public content
1980. Struble, Richard A. Base map: USGS Cleveland, Ohio; Pa., U.S., Ont., Can. (4th ed. 1972 rev.) "Areal density of photo linears occurring within a 5000 meter square grid... Ohio. Division of Geological Survey.

103. Second-Degree Trend-Surface Map, Columbus/Marion OH

Maps The Ohio State University Public content
1980. Struble, Richard A. Base map: USGS Cleveland, Ohio; Pa., U.S., Ont., Can. (4th ed. 1972 rev.) "Areal density of photo linears occurring within a 5000 meter square grid... Ohio. Division of Geological Survey.

104. Second-Degree Trend-Surface Map, Toledo OH

Maps The Ohio State University Public content
1980. Struble, Richard A. "Areal density of photo linears occurring within a 5000 meter square grid." Base map: USGS Cleveland, Ohio; Pa., U.S., Ont., Can. (4th ed. 1972 rev... Ohio. Division of Geological Survey.

106. Second-Degree-Surface Residual-Height Map, Columbus/Marion OH

Maps The Ohio State University Public content
1980. Struble, Richard A. Title assigned by cataloguer. prepared ... by Richard A. Struble and David A. Hodges. "Areal density of photo linears occurring within a 5000 meter... Ohio. Division of Geological Survey.

107. Second-Degree-Surface Residual-Height Map, Toledo OH

Maps The Ohio State University Public content
1980. Struble, Richard A. Title assigned by cataloguer. prepared ... by Richard A. Struble and David A. Hodges. "Areal density of photo linears occurring within a 5000 meter... Ohio. Division of Geological Survey.

108. Seneca County, New York

Maps University Of Minnesota Public content
1980. United States. Soil Conservation Service. Base source: USGS 1:100,000 county base dated 1977; interpretations derived from soil map constructed 1970.; "Projection and 10,000-metre grid tick... Dept. of Agriculture, Soil Conservation Service (Washington.).

109. Soil interprative map of important farmlands : Lubbock County, Texas

Maps University Of Minnesota Public content
1980. United States. Soil Conservation Service. "Base compiled from U.S.G.S. quadrangle sheets and county highway map, polyconic projection."; "50,000 foot grid ticks based on the Texas state pla... The Service (Fort Worth, Tex.).

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