Mount Washington via Ammonoosuc Ravine and Jewell Trail Loop

While the route is listed for jogging, it's important to understand that the Mount Washington via Ammonoosuc Ravine and Jewell Trail Loop is a highly challenging and strenuous 10-mile hike with approximately 4,000 feet of elevation gain. The terrain is rugged, technical, and often involves rock scrambles and loose footing, especially above treeline. Continuous jogging is largely impractical and potentially dangerous due to the steepness and difficult footing. Most people complete this loop as a demanding hike, typically taking 8-10 hours.

The terrain is diverse and very challenging. The ascent via the Ammonoosuc Ravine Trail is particularly steep and rough, featuring open rock ledges, staircases, and rock scrambles that can be tricky when wet. Above treeline, both on the approach to the summit and the upper portions of the Jewell Trail, the path is completely exposed, rocky, and requires careful 'rock hopping.' The descent on the Jewell Trail is generally considered gentler but still starts very rocky above treeline before becoming a steady, moderate descent on good tread below treeline.

You'll encounter several notable features. The lower sections of the Ammonoosuc Ravine Trail follow the Ammonoosuc River, showcasing numerous waterfalls and cascades, including the picturesque Gem Pool. Higher up, you'll pass the Lake of the Clouds Hut, the highest AMC backcountry hut. The ultimate highlight is the Mount Washington Summit, offering breathtaking 360-degree views. Along the Jewell Trail, you can also catch views of the historic Cog Railway.

The best time to undertake this challenging loop is during summer and early fall. Mount Washington is infamous for having 'the world's worst weather,' and severe storms, high winds, and even snow are possible at any time of year, including summer. Always check the latest weather forecast for the summit before you go and be prepared for rapidly changing conditions.

Parking for the Ammonoosuc Ravine Trail is typically available at the Ammonoosuc Ravine Trailhead, which is accessed from Base Station Road. For the Jewell Trail, parking is also available near the Cog Railway Base Station. Both trailheads are conveniently located for this loop. Arriving early, especially on weekends, is highly recommended as parking lots can fill up quickly.

Yes, dogs are generally allowed on trails within the White Mountain National Forest, including the Ammonoosuc Ravine Trail and the Jewell Trail. However, they must be kept on a leash at all times. Given the rugged and strenuous nature of this particular loop, ensure your dog is fit enough for such a demanding hike and bring plenty of water for them.

Generally, there are no specific permits required for day hiking on the Ammonoosuc Ravine and Jewell Trail Loop. However, some parking areas within the White Mountain National Forest may require a day-use fee or a recreation pass (such as the America the Beautiful Pass). Always check signage at the trailhead parking lot for current requirements.

Yes, this route utilizes sections of several other prominent trails. You'll be on the Ammonoosuc Ravine Trail for the ascent and the Jewell Trail for the descent. Near the summit, the route briefly joins sections of the historic Crawford Path and the Appalachian Trail. You'll also encounter the Gulfside Trail as you traverse towards the Mount Washington Summit.

Most hikers prefer to ascend via the Ammonoosuc Ravine Trail and descend via the Jewell Trail. The Ammonoosuc Ravine Trail is steeper and more rugged, making it a challenging climb, but many find it more manageable to go up the rock scrambles than to descend them. The Jewell Trail offers a slightly more moderate descent, especially once below treeline, providing a gentler return to the trailhead.

Given Mount Washington's unpredictable weather, always pack layers, even in summer. Essential items include: waterproof and windproof outer layers, insulating layers (fleece/down), sturdy hiking boots, plenty of water (at least 3 liters), high-energy snacks, a map and compass/GPS, headlamp, first-aid kit, and sun protection. Trekking poles are highly recommended for stability on the rocky terrain.

The primary facility along the route is the AMC Lakes of the Clouds Hut, located just below the Mount Washington Summit. Here, you can refill water, use restrooms, and seek shelter if needed. Beyond the hut, there are no reliable water sources that don't require filtration, so carry sufficient water for the entire hike.