The Mississippi, the Ohio, and the Wabash border the Shawnee Hills, a region in southern-most Illinois. Today, 2,000 runners will brave light rains and conduct an 80-mile relay race along the River-to-River Trail. They will start at McGee Hill on the Mississippi and finish at Golconda, Illinois on the Ohio. Each team member will run three legs of the race. One thing they will not be doing is hiking the remarkable geological formations that are packed into this compact region.
Spring has come to the Shawnee Hills. The fruit trees are in bloom. It’s an ideal time to take in the remarkable geological formations the region has to offer.
Thursday, my hiking buddy, Mike, and I searched on the Pomona Natural Bridge. We hiked the the short trail down to the viewing area, picked our way down to the bridge, gingerly crossed the bridge, and negotiated the rocks down to the bed of the creek that eroded the bridge eons ago. The creek that eroded the bridge also eroded the overhanging shelter that runs into the bridge.
I have not been able to find any information that tells me why the bridge is adjacent to a sheer wall of rock.