Pomona Natural Bridge in Jackson County, Illinois
Photo by Jay Wilbur
NABSQNO 16S-293167-4169383. Pomona Natural Bridge is an adult waterfall natural bridge eroded through sandstone. It is located north of the town of Pomona, in Jackson County, Illinois, and is within the boundaries of the Shawnee National Forest. Access is via a gravel USFS road. Pomona Natural Bridge appeared in the Vreeland catalog as number 14-7. Vreeland reported a span of 75 feet, a height of 30 feet, a width of 9 feet, and a thickness of 9 feet.