Yes, there are currently two loop trails along the OHT. The Shores Lake to White Rock Loop Trail (13.4 miles) and the Redding to Spy Rock Loop Trail (8.8 miles). There are maps and detailed descriptions of both these loop trails included in the guidebook. The only way to make a longer loop hike utilizing the OHT would be to loop back around via roads or bushwhack on your own. We do hope to construct additional loop trails in the future.