Browsing by people, organizations and landmarks: decade:
Map
Hidden Lake Forest Preserve [site survey, ecological reconstruction, ecosystems/ecological value, slope, hydrology, soils, minerals, cultural improvements, and neighboring land use]circa 1975
Forest Preserve District of DuPage County
Map
Northern Illinois Toll Highway Parcel No. E-2-68E [and E-2-68E.1], Sec. 3, T.38N., R.10E. of the 3rd P.M., DuPage County, IllinoisMay 1978
Illinois State Toll Highway Authority
Map
Northern Illinois Toll Highway Parcel no. E-2-70E, Sec. 3, T.38N., R.10E. of the 3rd P.M., DuPage County, IllinoisMay 1978
Illinois State Toll Highway Authority
Map
Northern Illinois Toll Highway Parcel No. E-2-71E [and] E-2-71E.1, Sec. 3, T.38N., R.10E. of the 3rd P.M., DuPage County, IllinoisMay 1978
Illinois State Toll Highway Authority