Hidden Lake Forest Preserve [site survey, ecological reconstruction, ecosystems/ecological value, slope, hydrology, soils, minerals, cultural improvements, and neighboring land use] (3.5833)
Date: circa 1975Creator: Forest Preserve District of DuPage County
Type: Map
Description:Subtitle above is summary of sheet-titles. A portion of this 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: 9 sheets stapled
Gœa Heidelbergensis : oder, Mineralogische Beschreibung der Gegend von Heidelberg (3.63445)
Date: 1830 – 1831Creator: Bronn, H. G. (Heinrich Georg), 1800-1862
Type: Book
Extent: x, [4], 237 pages : map ; 17 cm