TrailKnob Mountain – Jeremys Run
6-mile circuit, 1,303ft gain, moderately strenuous. Jeremys Run's picturesque stream through wilderness—expect steep grades and stream crossings. 7.5 hours.

This 8-mile round trip to Corbin Cabin demands tactical fitness—1,240 feet of elevation gain over moderately strenuous terrain through Shenandoah Wilderness. You'll cross multiple streams and navigate forest trail to a historic cabin deep in the park. This is the designated pet-friendly alternative from Old Rag, but don't let that fool you: the climb is real and the descent tests your knees. Expect 7 hours of sustained effort and come prepared.
Moderately Strenuous
Corbin Cabin is the destination—a genuine historic structure deep in wilderness, not a ranger station. This is the only designated pet-friendly alternative to the main Old Rag Circuit from this parking area, offering solitude and historical intrigue.
• The concrete trail marker at Old Rag Parking is easy to miss—it's across the road from the main lot • Corbin Cabin is a historic structure, not a ranger station—respect the site and don't leave trash • The cabin sits roughly at mile 4; the round trip is 8 miles total—don't bail early thinking you're almost done • Stream crossings are seasonal—water is highest in spring, lowest in late summer and fall • This is a pet-friendly alternative, not a pet-easy alternative; fitness demands are real for both human and canine • Bring more water than you think you need—desert-hiking wisdom applies even in humid Virginia
Spring through Fall
Stream crossings and 7-hour duration make this challenging for young children. Moderately strenuous terrain requires solid aerobic fitness from all hikers. Dogs allowed on 6-foot leash maximum. Hand-holding mandatory near streams and steep drop-off sections. Not recommended for kids under age 12 or those with limited hiking experience.
Hikers consistently report the elevation gain is steeper than expected for 'moderately strenuous' difficulty. Most praise the solitude compared to main Old Rag Circuit and the historic cabin destination. Fitness level and water planning are the make-or-break factors; many underestimate the descent's impact on knees.
Not required. Entry via Shenandoah National Park entrance fee.
Not required. Start directly from Old Rag Parking Area.
Multiple stream crossings require careful footing—water is highest in spring. 1,240 feet of elevation gain over moderately strenuous terrain means relentless switchbacks and high energy expenditure. Narrow trail with exposed sections near drop-offs; requires balance and attention. Wilderness trail with unreliable cell service and no maintained facilities. Trail does not meet ADA accessibility guidelines.
Not ADA accessible. Trail is steep, rooty, and includes stream crossings requiring scrambling ability.
Stream crossings and 7-hour duration make this challenging for young children. Moderately strenuous terrain requires solid aerobic fitness from all hikers. Dogs allowed on 6-foot leash maximum. Hand-holding mandatory near streams and steep drop-off sections. Not recommended for kids under age 12 or those with limited hiking experience.
Hikers consistently report the elevation gain is steeper than expected for 'moderately strenuous' difficulty. Most praise the solitude compared to main Old Rag Circuit and the historic cabin destination. Fitness level and water planning are the make-or-break factors; many underestimate the descent's impact on knees.
" Hikers consistently report the elevation gain is steeper than expected for 'moderately strenuous' difficulty. Most praise the solitude compared to main Old Rag Circuit and the historic cabin destination. Fitness level and water planning are the make-or-break factors; many underestimate the descent's impact on knees."
Yes. Carry a fully charged phone and tell someone your intended return time. Download offline maps before you leave cell coverage. The trail is well-marked, but solo navigation in wilderness requires self-reliance.
Trekking poles are highly recommended—they reduce knee stress on descent by 25–30%. Waterproof hiking boots help with stream crossings. A water filter is essential if you plan to refill from streams. Microspikes are useful if snow is present.
Yes—it's the designated pet-friendly Old Rag option. Leash must be 6 feet or shorter per park rule. Watch for steep drop-offs and swift stream sections where your dog could slip. Dogs with weak rear legs should sit this one out.
Solid aerobic fitness is mandatory. If you cannot comfortably climb stairs for 30 minutes, reconsider. 1,240 feet of elevation gain demands conditioning. Couch-to-trail hikers will hit a wall around mile 3.
Follow the Nicholson Hollow Trail markers consistently. If unsure, retrace your steps—do not bushwhack. The concrete marker at Old Rag Parking is your north star; confirm you find it on the way out before starting the hike.
Black bears live in Shenandoah. Make noise while hiking—talk, clap, or use a bear bell. Carry bear spray if you're experienced with it. Store all food and scented items in your pack; never leave them unattended.
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