Start immediately behind the ranger station in O'Neill Park. Take the paved frontage road that parallels Live Oak, then left up the paved road at the end of the park. Then mostly dirt over to Cook's Corner, pavement to Harding Truck Trail. Up Harding to Santiago Peak, down Upper Holy Jim, main divide to top of San Juan Trail (water in Blue Jay campground). Down San Juan Trail thru the back of Caspers onto San Juan Creek Trail, which parallels Hwy 74 (all dirt). A few miles of pavement near the main facilities in Caspers Wilderness park then onto dirt again and eventually uphill back thru Coto. At the Coto waterfall left onto Tijeras, then Arroyo back to O'Neill. This is really a great loop with only about 6 miles of pavement total and about 25 miles of singletrack (Upper Holy Jim, San Juan and Tijeras / Arroyo).
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