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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
The Morton Arboretum [enlarged sections of Crabapple Lake area and Meadow Lake area] [topographic map] (3.6700)
Date: 1986Creator: Sidwell Company
Type: Map
Description:Enlarged sections of Crabapple Lake area and Meadow Lake area.
Five enlarged sections of c.1 sheet 3.
Extent: 5 sheets