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The Morton Arboretum [topographic map] [Revised] (3.5488)
Date: 1990Creator: Sidwell Company
Type: Map
Description:Topographic data produced from aerial photography orginally made Dec.16,1985 (SURV:A III (c) 2); updated for the revision on April 25,1990. True elevations given. Includes Hidden Lake leased land.
Extent: 5 sheets
The Morton Arboretum [topographic map] (3.5490)
Date: 1986Creator: Sidwell Company
Type: Map
Description:Topographic data produced from aerial photography made Dec.16, 1985. True elevations given. Includes Hidden Lake leased land.
Extent: 5 sheets