Monroe City Syncline
From ILSTRUC
Location
Southern Monroe County (I-3)
References
S. Weller and J. Weller 1939, Bristol and Buschbach 1973
Description
The Monroe City Syncline flanks the Valmeyer Anticline on the southwest. As shown on Bristol and Buschbach's (1973) map of the Galena (Trenton) Group, the syncline is open to the southwest. Relief from the trough of the syncline to the crests of adjacent anticlines is more than 200 feet (60 m).
