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[Aerial photo of sections of The Morton Arboretum] (3.6274)
Date: 1975Creator: Chicago Aerial Survey Co.
Type: Map
Description:Survey includes northwest portion of Arboretum (1" = 400') and "Johnson Farm" and Hidden Lake area. One photo by Chicago Aerial Survey, second photo unknown. "Johnson Farm" includes partial topographic overlay and boundaries of "existing holdings and proposed acquisitions."
Extent: 2 sheets