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131. Ringgold County, Iowa, 1981, aerial photomosaic index

Imagery University Of Iowa Public content
1980. Title supplied by cataloger based on information from sheet labels. Images are photoreductions of mosaics created from original aerial photographs.... United States. Agricultural Stabilization and Conservation Service.

132. Saline County, Illinois

Maps University Of Minnesota Public content
1980. United States. Soil Conservation Service. "Interpretations derived from soil map constructed 1978."; May 1980.; Includes location map. 49 x 45 centimeters Scale 1:100,000. Dept. of Agriculture, Soil Conservation Service (Washington.).

133. Scott County, Iowa, 1981, aerial photomosaic index

Imagery University Of Iowa Public content
1980. Title supplied by cataloger based on information from sheet label. Image is a photoreduction of the mosaic created from original aerial photographs... United States. Agricultural Stabilization and Conservation Service.

134. Second Degree-Surface Residual-Height Map, Canton OH/Clarksburg 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.

135. 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.

136. 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.

137. 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.

138. 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.

140. 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.