20s and 30s Tripyramids via the North and South Slides
Details
Activity Type: Hiking, Local Walks, & Trail Running | Hiking
Difficulty: 6 - Strenuous
Trip Leader(s): Ian Baker, Phuong Dinh
Registration Type: Application
Please Click Here to RSVP: https://activities.outdoors.org/a5UVX000001A1Ld
Register By: 8/15/2026
Audience: 20’s & 30’s
Description: Join us for a strenuous hike to North Tripyramid (4,160’, #34 on the NH 4,000 footers list) and Middle Tripyramid (4,135’, #35 on the 4,000 footers list), and South Tripyramid. We will hike the Tripyramids via the North Tripyramid Slide and South Tripyramid Slide. Expect an approximately 10.5-mile lollipop loop hike with approximately 3,000’ of elevation gain on rough, steep terrain at a pace on the fast side of moderate.
NOTE: The North Slide in particular is among the most difficult trails in the White Mountains, gaining 1,200’ in 0.5 miles. The lower portion of the North Tripyramid Slide features a couple of very challenging scrambles on rock slabs, requiring the use of hands for safe passage. The upper portion of the trail then ascends steeply over loose talus. Due to the steepness and strenuousness of this hike, participants must have experience with strenuous trails, comfort with scrambling, and maintain a regular, robust cardiovascular fitness regimen.
To address unforeseen challenges such as adverse weather, unacceptable trail conditions or excessive crowding, the planned trip destination, activity and/or meeting place and time may be modified. In that event, participants may elect to join in that activity or opt out. We will hold Sunday, August 23 a backup date for this hike if weather conditions prohibit us from hiking on August 22. Due to the potential danger of the North Tripyramid Slide in wet conditions, we will ascend via the Scaur Ridge Trail if we expect the North Slide will be wet. While steep, the South Slide consists only of loose stone and is arguably easier when wet (per Ian’s experience hiking it in the rain).
Reminder: Please click the RSVP link above to register!