An unnamed cave natural arch in Mesa County, Colorado
Photo by Craig Shelley
NABSQNO 12S-687285-4335670. This unnamed cave natural arch is eroded through Entrada sandstone. It is located above a short, unnamed canyon that drains into the Colorado River, in a BLM wilderness area west of Grand Junction in Mesa County, Colorado. Access requires a permit and directions from the BLM ranger station in Grand Junction. The arch is known as "Lonesome Lips Arch" locally. It has a span of about 25 feet.