Trail Name: Horse Collar Arch Trail – Dolores River Access
Best Use: Hiking
Best Time for Use: Late Spring, Summer and Early Fall
Difficulty: Intermediateicon-intermediate
Length (at arch/at river): 0.50 mi/0.70 mi (1km/1.1km)
Start Elevation: 5,270 ft (1,606 m)
Elevation Loss (at arch/at river): 253ft (77m)/413ft (126m)
Trail Surface: Rocky single track to a slick rock creek bottom.
Trail Head Access: 2WD when dry. The trailhead is 3.3 mi (5.3 km) from Hwy 141 on CR R13. Look for a rock cairn on the left approx. 0.65 mi from intersection of R 13 and T12 roads.
Trail Head Coordinates: 690,107E, 4,251,918N

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Description: This historic trail takes hikers down into the main Martin Mesa drainage to this unique “arch”, where runoff has cut a hole through a cliff band, creating a 100 ft plunge to the pool below. A faint trace of the trail continues on the east side of the drainage down to the Dolores River.