The Mt. Dellenbaugh summit trail offers one of the most scenic views from its summit into the western Grand Canyon and Arizona Strip. The Mt. Dellenbaugh trailhead is the starting point for a strenuous 5.9-mile round trip hike through towering evergreens to the 7,072 Mt. Dellenbaugh Peak. The trail begins mostly level, with a very gentle uphill grade. It winds through a pinyon, juniper, and ponderosa woodland. It then joins an old two-track road which gradually steepens. The final 100 yards to the summit is steep and crosses over lava rock boulders. Learn more about the Mt. Dellenbaugh Summit Trail . Hours and Seasons This trail is best attempted in the spring and fall when temperatures are most comfortable. There is no shade on the trail for summer hikers when temperatures can be in the low 90s. The area is usually not accessible from December through March due to snow, ice, and mud on the road. Snow is melted off usually by April. When wet the trail is impassible due to slippery clay.