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Bernard Cohrs Feedlot and Pit.
Aerial view of Bernard Cohrs feedlot and pit in Dickinson County, Iowa.
Feedlot and Diversion, 1965
B&W photograph of feedlot and foothill diversion.
Feedlots and Pit on Roy Olsen's Farm.
Feedlots and pit on Roy Olsen's farm in Dickinson County, Iowa.
John Jepsen feedlot pollution control
B&W photographs of John Jepsen's feedlot and his pollution control measures.
Pollution control near a feedlot.
Pollution control near a feedlot at Rathbun.
Ron Tracy feedlot pollution control pit
B&W photographs of pollution control pit for feedlot on Ron Tracy farm.
Ron Tracy feedlot with 100 heard loafing shed
B&W photographs of Ron Tracy's feedlot with 100 head individual loafing shed and pollution pit.