The Pomona Natural Bridge is a

natural bridge A natural arch, natural bridge, or (less commonly) rock arch is a natural landform where an arch has formed with an opening underneath. Natural arches commonly form where inland cliffs, coastal cliffs, fins or stacks are subject to erosion fr ...

approximately 30m long, 3m wide, and 3m thick, located near Pomona, IL. It is in the

Shawnee National Forest The Shawnee National Forest is a United States National Forest located in the Ozark and Shawnee Hills of Southern Illinois, United States. Administered by the U.S.D.A. Forest Service, it consists of approximately 280,000 acres (1,100 km²) ...

. A small unnamed stream flows beneath the bridge.

References

Sierra Club Page

USDA - Forest Service Page
http://www.shawneeshuttle.com/Southern-Illinois-Attractions/State-Parks-Natural-Areas-Lakes/Pomona-Natural-Bridge.html Landforms of Jackson County, Illinois Protected areas of Jackson County, Illinois Natural arches of Illinois Shawnee National Forest Articles containing video clips {{JacksonCountyIL-geo-stub