Tri-County Airport USGS Yates City Quad, Illinois, Topographic Map

Tri-County Airport is an Airport in the state of Illinois (county of Knox), located at latitude - longitude coordinates (also known as lat-long or GPS coordinates) of N 40.77393 and W -90.07428. Tri-County Airport is shown in the center of the topographic (topo) map, which is sourced from the United States Geographical Survey map USGS Yates City quad. The nearest major town is Yates City, IL.