Latitude and longitude of Third principal meridian
- Nearby Salem, Illinois, United States
Satellite map of Third principal meridian
The third principal meridian begins at the mouth of the Ohio River and extends north to the northern boundary of the state of Illinois, and with the base line in latitude 38° 28′ 20″, governs the surveys in the state east of the third principal meridian, with the exception of those projected from the second principal meridian, and the surveys on the west, to the Illinois River.
Latitude: 38° 28' 16.19" N
Longitude: -89° 08' 32.40" W