The trail leads from the left side of the Koomer Ridge Campground passing long a dry ridgetop to a small sandstone conglomerate buttress type formation arch. Plant life consists of mixed pine/hardwood stands overstory with Sourwood, Dogwood and dry heath understory. The trail continues beyond Hidden Arch to Koomer Ridge Trail #220.

• Start: Koomer Ridge Campground
  
• End: Koomer Ridge Trail #220
  
• Trail Connections: Koomer Ridge Trail
  
• Elevation: 1100'- 1230'

Turn South off the Mountain Parkway at Slade. KY to Hwy. 11. Follow Hwy. 11 North 0.1 miles to Hwy. 15. Travel East on Hwy. 15 4.9 miles to Koomer Ridge campground on the left. Take left fork in campground and park in the backpackers parking lot 634B on left.

Features a small sandstone conglomerate buttress type formation arch.