Aerial survey [Black Hawk County] by Gatschet 1937 sheet 4

Photomosaic map of Black Hawk County, Iowa done for the U.S. Department of Agriculture Agricultural Adjustment Administration by Gatschet Aerial Surveyshttps://scholarworks.uni.edu/rodmaps/1035/thumbnail.jp

Aerial survey [Black Hawk County] by Gatschet 1937 sheet 9

Photomosaic map of Black Hawk County, Iowa done for the U.S. Department of Agriculture Agricultural Adjustment Administration by Gatschet Aerial Surveyshttps://scholarworks.uni.edu/rodmaps/1040/thumbnail.jp

Aerial survey [Black Hawk County] by Gatschet 1937 sheet 6

Photomosaic map of Black Hawk County, Iowa done for the U.S. Department of Agriculture Agricultural Adjustment Administration by Gatschet Aerial Surveyshttps://scholarworks.uni.edu/rodmaps/1037/thumbnail.jp

Aerial survey [Black Hawk County] by Gatschet 1937 sheet 8

Photomosaic map of Black Hawk County, Iowa done for the U.S. Department of Agriculture Agricultural Adjustment Administration by Gatschet Aerial Surveyshttps://scholarworks.uni.edu/rodmaps/1039/thumbnail.jp

Aerial survey [Black Hawk County] by Gatschet 1937 sheet 7

Photomosaic map of Black Hawk County, Iowa done for the U.S. Department of Agriculture Agricultural Adjustment Administration by Gatschet Aerial Surveyshttps://scholarworks.uni.edu/rodmaps/1038/thumbnail.jp

Aerial survey [Black Hawk County] by Gatschet 1937 sheet 2

Photomosaic map of Black Hawk County, Iowa done for the U.S. Department of Agriculture Agricultural Adjustment Administration by Gatschet Aerial Surveyshttps://scholarworks.uni.edu/rodmaps/1033/thumbnail.jp

Aerial survey [Black Hawk County] by Gatschet 1937 sheet 3

Photomosaic map of Black Hawk County, Iowa done for the U.S. Department of Agriculture Agricultural Adjustment Administration by Gatschet Aerial Surveyshttps://scholarworks.uni.edu/rodmaps/1034/thumbnail.jp

Aerial survey [Black Hawk County] by Gatschet 1937 sheet 5

Photomosaic map of Black Hawk County, Iowa done for the U.S. Department of Agriculture Agricultural Adjustment Administration by Gatschet Aerial Surveyshttps://scholarworks.uni.edu/rodmaps/1036/thumbnail.jp

Aerial survey [Black Hawk County] by Park Aerial Surveys 1941

Photomosaic map of Black Hawk County, Iowa done for the U.S. Department of Agriculture Agricultural Adjustment Administration by Park Aerial Surveyshttps://scholarworks.uni.edu/rodmaps/1026/thumbnail.jp

Agricultural Adjustment Adm. [Black Hawk County] 1941

Photomosaic map of Black Hawk County, Iowahttps://scholarworks.uni.edu/rodmaps/1014/thumbnail.jp