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1978. This polygon shapefile contains ice observations in the Arctic region for September 22, 1978. This polygon shapefile contains ice observations in t... Arctic Climate System (ACSYS).
1976. This polygon shapefile contains ice observations in the Arctic region for September 23, 1976. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1984. This polygon shapefile contains ice observations in the Arctic region for September 23, 1984. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1988. This polygon shapefile contains ice observations in the Arctic region for September 26, 1988. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1979. This polygon shapefile contains ice observations in the Arctic region for September 27, 1979. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1970. This polygon shapefile contains ice observations in the Arctic region for September 3, 1970. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1976. This polygon shapefile contains ice observations in the Arctic region for September 30, 1976. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1984. This polygon shapefile contains ice observations in the Arctic region for September 9, 1984. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1917. State Historical Society of Iowa (Iowa City) and Successful Farming Publishing Co. (Successful Farming Publishing Co., 1917, Atlas and Plat Book of Adair County, Iowa); 1 atlas: b&w.; 31 X 41 cm. Material in the public domain. No ... Successful Farming Publishing Co.
1930. Advocate-Republican and University of Iowa. Libraries. Map Collection. 36 l.: b&w; 31 x 23 cm. "Showing land ownership, U.S. highways, state highways, county roads, township roads, mail routes, railroads, streams, drai... Advocate-Republican.