Forgottonia
Forgottonia (), also spelled Forgotonia, is the name given to a 16-county region in Western Illinois in the late 1960s and early 1970s. This geographic region forms the distinctive western bulge of Illinois (area west of 90° Longitude West) that is roughly equivalent to "The Tract", the Illinois portion of the Military Tract of 1812, along and west of the Fourth Principal Meridian (see Principal meridian).