Register for the 2025 Pacific Northwest Six-Pack of Peaks Challenge, a self-paced hiking challenge that begins January 1, 2025 and ends December 31, 2025. 

Explore new mountains, test your limits, level up your outdoor experience, and expand the boundaries of what you are capable of. 

Complete the hikes on a schedule that works for you. You can hike them in six days, six weeks, or take the entire year. The mountains begin lower with the steep Mailbox Peak, graduating to longer more challenging peaks, culminating with the 10,188′ Camp Muir on Mount Rainier and the 8,363′ Mount Saint Helens.

There are nine mountains to choose from. Hike any six to complete the challenge and earn your place on the finishers list.