Scott and Obsidian Trail loop

Yes, a Central Cascades Wilderness Permit is mandatory for both day and overnight use between June 15 and October 15. These permits can be obtained via Recreation.gov, with reservations typically opening in April. This trail is located within the Three Sisters Wilderness, which requires these specific permits.

The best time to hike is generally from late June to October, as this is when McKenzie Pass (Highway 242) is typically open and snow has melted at higher elevations. You'll find vibrant wildflowers, especially lupine, from late July to early August, and glowing golden foliage in late September and October.

Dogs are allowed on the trail, but it's highly recommended they wear boots to protect their paws from the sharp obsidian and lava rock found along the route. Always keep your dog on a leash and follow Leave No Trace principles.

The terrain is varied and challenging. You'll encounter forested paths, significant elevation changes, and numerous lava flows with loose surfaces and jumbled rocks. Expect dramatic 'jagged red fields' of volcanic rock and patches of snow at higher elevations, even into summer. Some areas feature a 'wildly rugged landscape, dotted with the silver skeletons of trees'.

Parking is available at the Scott Trailhead. Be aware that a half-mile connector trail from the Obsidian Trailhead back to the Scott Trail has been decommissioned. This means you might need to walk a portion along Highway 242 to complete the loop back to your starting point.

The loop offers dramatic scenery, including vast fields of black, shining obsidian rock within the Four in One Cone area. You'll also get stunning views of prominent peaks like Collier Cone, North Sister, Middle Sister, Mount Washington, Three Fingered Jack, and Mount Jefferson. Look for large meadows vibrant with wildflowers, Obsidian Falls, and Sister Spring.

Yes, the route incorporates sections of the Pacific Crest Trail (PCT) - Oregon Section E, the Three Sisters Loop Trail, Scott Trail #3531, and Obsidian Trail #3528. You'll also briefly encounter the Pacific Crest National Scenic Trail #2000, Glacier Way #4336, Scott-Obsidian Tie Trail, and Stock Trail.

No, this is considered a difficult hike. It features significant elevation changes and rugged sections, with a total mileage of over 14 miles and substantial elevation gain. It requires careful planning and experience with challenging terrain.

Given its length of approximately 14.2 miles (22.8 km) and significant elevation gain, this loop typically takes around 6 to 8 hours to complete for experienced hikers. Plan for a full day on the trail.

A clockwise direction is often suggested for this loop. This approach generally provides more gradual ascents, making the challenging climbs a bit more manageable.

Given the trail's difficulty and remote nature, essential gear includes sturdy hiking boots (and dog boots if applicable), plenty of water, navigation tools (map, compass, or GPS, as snow patches can obscure the trail), layers of clothing for changing weather, sun protection, and a first-aid kit. Trekking poles can also be very helpful on the rugged sections.