Clear Lake USGS Clear Lake Quad, Illinois, Topographic Map

Clear Lake is a Lake in the state of Illinois (county of Cass), located at latitude - longitude coordinates (also known as lat-long or GPS coordinates) of N 40.05227 and W -90.30846. Clear Lake is shown in the center of the topographic (topo) map, which is sourced from the United States Geographical Survey map USGS Clear Lake quad. The nearest major town is Bluff Springs, IL.