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Clark Jr., Edward T.
Sidwell Company
DuPage County Department of Public Works
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Hall, Marion Trufant
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The Morton Arboretum Records
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Aerial photography
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Objects (11 results)

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MapSouth Farm watershed map

February 15 1989

Kelsey, Pat

MapHidden Lake Forest Preserve [site survey, ecological reconstruction, ecosystems/ecological value, slope, hydrology, soils, minerals, cultural improvements, and neighboring land use]

circa 1975

Forest Preserve District of DuPage County

MapExisting and proposed watersheds, North-South Tollway plan

March 1 1986

Illinois State Toll Highway Authority

MapWilloway Brook Basin Study (E. Branch DuPage River Tributary #5)

January 1985

DuPage County Department of Public Works

MapWetlands and Japanese Coll. drainage [and] North Asian and European Collection drainage

circa 1988

Tyznik, Anthony

MapWetlands and Japanese Coll. drainage [and] North Asian and European Collection drainage

circa 1988

Tyznik, Anthony

MapWetlands and Japanese Coll. drainage [and] North Asian and European Collection drainage

circa 1988

Tyznik, Anthony

MapWatershed Delineation Maps

1991

Hootman, Rick

MapEast Branch Valley View project area

June 5 1995

Department of Environmental Concerns

MapValley View area, Eagle Lake alternative

July 11 1995

Department of Environmental Concerns

Document1978/11/27: Marion T. Hall to Jack T. Knuepfer

November 27 1978

Hall, Marion Trufant

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