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Terracer at the Zearing Field Day events.

Terracer at the Zearing Field Day events.

Demonstrations with a terracer at the Zearing Field Day events.

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Teachers attend a Conservation Education Workshop.

Teachers attend a Conservation Education Workshop.

Teachers attend a Conservation Education Workshop hosted in West Pottawatamie County, Iowa.

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Clint Goos (middle) accepts the Outstanding Soil and Water Conservation District Commissioner Award.

Clint Goos (middle) accepts the Outstanding Soil and Water Conservation District Commissioner Award.

Clint Goos (middle) of Treynor was one of the eight regional finalists for the 1995 Outstanding Soil and Water Conservation District Commissioner Award presented during the 49th Annual Meeting for Iowa Soil and Water Conservation District…

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TNT - The No Till Newsletter, 1986.

TNT - The No Till Newsletter, 1986.

TNT - The No Till Newsletter, 1986.

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North Pigeon Watershed, 2010.

North Pigeon Watershed, 2010.

North Pigeon Watershed in West Pottawattamie County, Iowa.

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North Pigeon Watershed, 1978.

North Pigeon Watershed, 1978.

Double structure construction site at North Pigeon Watershed in West Pottawattamie County, Iowa.

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North Pigeon Watershed, 2005.

North Pigeon Watershed, 2005.

North Pigeon Watershed in West Pottawattamie County, Iowa.

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Iowa's SWCD Historical Timeline, 1939-2005.

Iowa's SWCD Historical Timeline, 1939-2005.

Iowa's SWCD Historical Timeline, 1939-2005.

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Ryan Henscal site H-1, 2005.

Ryan Henscal site H-1, 2005.

Ryan Henscal site H-1, 2005; in West Pottawattamie County, Iowa.

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Ryan Henscal site H-1, 2010.

Ryan Henscal site H-1, 2010.

Ryan Henscal site H-1, circa 2010; in West Pottawattamie County, Iowa.

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