Mount Colden Loop via Avalanche Pass and Lake Arnold

No, the full loop is currently impassable. The Avalanche Pass Trail is closed from its intersection with the Lake Arnold Trail to the southern end of Avalanche Lake due to significant mud and rockslides that occurred in July 2025. Hikers should not attempt the full loop until it reopens. Repairs are not expected to begin until summer 2026.

This loop is generally rated as difficult. It's often described as a 'brutal hike' due to significant and unrelenting steep ascents, particularly on Mount Colden's southwest side. Expect slick rock slides, sections that can become very muddy after rain, and intricate boulder scrambles.

When fully accessible, this challenging loop typically takes 7-10 hours to complete. This accounts for its length of 13.8 to 14.1 miles and an elevation gain of approximately 3,200 to 3,800 feet.

The terrain is highly varied and rugged. Initial sections towards Marcy Dam are relatively flat. As you progress, it becomes rougher with rock-strewn paths, intricate boulder scrambles, exposed roots, wooden stairways, and ladders. The Avalanche Pass section features unique wooden "Hitch-Up Matilda" catwalks along Avalanche Lake, and the ascent of Mount Colden is very steep with eroded open rock and slab sections.

The route offers breathtaking scenery. Highlights include the pleasant forest walk to Marcy Dam, the awe-inspiring Avalanche Pass with its unique "Hitch-Up Matilda" catwalks along Avalanche Lake, and the panoramic 360-degree views from the summit of Mount Colden. You'll also pass by Lake Arnold, Avalanche Lake, and Lake Colden, with dramatic views of Algonquin Peak and the High Peaks Wilderness.

The primary access point for this loop is typically from the Adirondack Loj trailhead. Parking is available there, but it can fill up quickly, especially during peak season. It's advisable to arrive early.

While there isn't a specific permit required for the trail itself, there is a fee for parking at the Adirondack Loj trailhead. Additionally, certain regulations apply within the High Peaks Wilderness, which you can find more information about on the NY.gov website: ny.gov.

Yes, dogs are permitted on this trail. However, be aware that the route can be very challenging for them due to significant scrambling sections, steep ascents, and slab rock. Consider your dog's fitness and agility before bringing them on this hike.

When the trail is fully open, late spring through early fall (June to October) is generally the best time. Fall foliage offers particularly vibrant views. However, be prepared for potentially muddy conditions after rain, and always check current trail conditions before heading out, especially given the current closure of Avalanche Pass.

Yes, the route utilizes and intersects with several other well-known paths. It covers significant portions of the Marcy Dam Truck Trail, the Lake Arnold Trail, and the Avalanche Pass Trail (though currently closed). Shorter sections also include the L. Morgan Porter Trail and the Van Hoevenberg Trail.

Given the current closure of Avalanche Pass, the full loop is not accessible. An alternative involves an out-and-back route via Lake Arnold. While this option allows access to some parts of the area, be aware that these routes may still be wet and muddy.