Grassy Knob USGS Wolf Lake Quad, Illinois, Topographic Map

Grassy Knob is a Summit in the state of Illinois (county of Jackson), located at latitude - longitude coordinates (also known as lat-long or GPS coordinates) of N 37.61394 and W -89.42954. Grassy Knob is shown in the center of the topographic (topo) map, which is sourced from the United States Geographical Survey map USGS Wolf Lake quad. The nearest major town is Grand Tower, IL.