Arch Rock is an ashflow tuff with a scenic arch and several small rockshelters eroded into the outcrop.
Trail description and directions are courtesy of the U.S. Forest Service. The USFS home page is www.fs.fed.us
From John Day, travel east toward Prairie City on Highway 26 about 10 miles. Turn north onto County road 18. Go approximately 10 miles to the junction of Forest Service road 36 and County Road 18. Follow the 36 road along Camp Creek to Forest Service road 3650. Drive the 3650 road to the junction of Forest Service road 3650-468 where the trailhead is located.
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