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