Shaded relief map of Illinois (3.6226)
Date: 1996Creator: Abert, Curtis C., Illinois Department of Natural Resources
Type: Map
Description:Illinois Map 6 - William W. Shilts, chief; $4.25 from Illinois State Geological Survey
Extent: 1 sheet
Forest Cover in Illinois 1820-1980 with maps on forest composition, volume, diversity and cover (3.7129)
Date: June 1990Creator: Illinois Natural History Survey
Type: Map
Description:Includes: chart of forested acres by county, and inset maps: number of woody species per county; percent of county forested; volume of growing stock for all tree species; forest resource regions and Illinois county names; forest cover map of midwest as estimated with satellite data
Extent: 1 sheet
2020 Chicago Region Tree Census Executive Summary (3.92360)
Date: 2021Type: Document
Description:Executive summary of the 2020 Chicago Region Tree Census, conducted by The Morton Arboretum, Davey Resource Group Inc., and the Student Conservation Association.
2020 Chicago Region Tree Census Report (3.92361)
Date: 2021Type: Document
Description:Report of the 2020 Chicago Region Tree Census, which was conducted by by The Morton Arboretum, Davey Resource Group Inc., and the Student Conservation Association.