Browsing by Subject/Keyword: year:
Hidden Lake master development plan (3.5834)
Date: 1980sCreator: Forest Preserve District of DuPage County
Type: Plan
Description:A portion of the Forest Preserve land parcel is leased by the Arboretum as a part of the Illinois State Toll Highway agreement of 1985. For a representation of the area leased, see DuPage County. Forest Preserve District. Hidden Lake Forest Preserve ... Arboretum-Forest Preserve District cooperative research program space study (SURV:B VI (c) 1).
Extent: 1 sheet
Hidden Lake Forest Preserve [Exhibit 1: Arboretum-Forest Preserve District Cooperative Research Program Space Study] (3.6090)
Date: April 1984Creator: Forest Preserve District of DuPage County
Type: Map
Description:Shows boundaries and acreage in the eastern half of the Arboretum made available to the Arboretum by the Forest Preserve District, and others made available to the Forest Preserve District by the Arboretum. Topography is shown. Copy 2 is a diazotype aerial photo with topographic lines dated April 1984.
Extent: 1 sheet