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Hidden Lake Forest Preserve [site survey, ecological reconstruction, ecosystems/ecological value, slope, hydrology, soils, minerals, cultural improvements, and neighboring land use]
61 cm W x 46 cm H (Item)
1 inch = 400 feet
9 sheets stapled
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).