Seville Anticline
From ILSTRUC
Part of the Peoria Folds
Location
Eastern McDonough and western Fulton Counties (E-2,3)
References
Wanless 1957
Description
This structure apparently was defined based largely on surface mapping, which shows a large inlier of the St. Louis and Salem Limestones and the Warsaw Shale beneath the pre-Pennsylvanian unconformity. Wanless suggested that the Seville Anticline feature may be, at least in part, an erosional remnant rather than a structural high.