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[Elevation Bench Marks on the Arboretum] (3.6110)
Date: May 1 1992Creator: Hootman, Rick
Type: Map
Description:Base map is a 1990 aerial photo of the Morton Arboretum prepared by the Sidwell Company of West Chicago, IL. Includes an 8.5"x11" sheet providing exact benchmark locations and elevations.
Extent: 5 sheets in binder