Browse Items (87 total) for Poweshiek County Soil and Water Conservation District Historical Collection

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Arbor Lake Map

Map of proposed timber challenge course for Arbor Lake.

Tags: Arbor Lake, Poweshiek Soil and Water Conservation District, Timber Creek Challenge Course

Skunk River Basin Maps, 1987

Skunk River Basin Maps including information on alluvial and buried channel aquifiers; depth to bedrock; quaternary isopach; median nitrate concentration for sample centers and shallow bedrock areas.

Tags: Map, Poweshiek County - Iowa, Skunk River Basin

1994 Poweshiek County Crop Year Map

Not to scale (1994 Flight) Poweshiek County crop year aerial map.

Tags: Agriculture, Map, Poweshiek Soil and Water Conservation District

1985 Basin 1 Relief Maps

A series of engineering maps regarding the plan and profile of Basin 1 Relief Sewer, Grinnell, Iowa.

Tags: Arbor Lake, Basin Relief Sewer, Grinnell Iowa, Poweshiek County - Iowa

Poweshiek County Highway and Transportation Map

A 1993 map created by Iowa Department of Transportation.

Tags: Iowa Department of Transportation, Map, Poweshiek County - Iowa, Poweshiek Soil and Water Conservation District

Series of aerial photograph maps dated 1983-05 of wetlands in Poweshiek County. Technical responsibility notations dated 1990. Towns included: Newburg, Grinnell(North & South), Searsboro, Sheridan, Malcolm, Montezuma, Belle Plaine SW, Brooklyn,…

Tags: Map, National Wetland Inventory, Poweshiek County - Iowa