Madison, Illinois Roads / Tertiary Highways

Latitude: 38.675 (38°40′30″N), Longitude: -90.1033 (90°6′12″W)

Latitude: 38.6777 (38°40′40″N), Longitude: -90.1428 (90°8′34″W)

Latitude: 38.7606 (38°45′38″N), Longitude: -90.145 (90°8′42″W)

Latitude: 38.6959 (38°41′45″N), Longitude: -90.0948 (90°5′41″W)

Latitude: 38.7885 (38°47′18″N), Longitude: -90.1248 (90°7′29″W)