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Report to the Forest Preserve District for 1990 [Draft] (3.67092)
Date: 1990Creator: The Morton Arboretum
Type: Document
Description:A draft of a 1990 report from the Morton Arboretum to the DuPage Forest Preserve District regarding work undertaken on land leased to the Morton Arboretum from the DuPage Forest Preserve.
Extent: 2 sheets
Institute of Museum Services Conservation Project 1989 (Hidden Lake) First Interim Report (3.67089)
Date: May 1990Type: Document
Description:A copy of Institute of Museum Services Conservation Project 1989 (Hidden Lake) First Interim Report that includes three pages of draft responses.
Extent: 5 sheets
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