An unnamed shelter natural arch in Freemont County, Colorado
Photo by Jay Wilbur
NABSQNO 13S-420125-4261910. This unnamed shelter natural arch is eroded through a narrow ridge of limestone. It is located on private land about seven miles east of Salida in Freemont County, Colorado. Close access requires special permission of the landowner. However, the arch is easily viewed from several vantage points along US Highway 50. Vreeland included this arch in his catalog as number 18-4 and reported a span of 16 feet.