Northern California Six-Pack of Peaks Challenge™


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NorCal Six-Pack of Peaks Challenge


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Mission Peak: 37.512415, -121.880779
Mt Umunhum: 37.160453, -121.898460
Mount Tamalpais: 37.923516, -122.596436
Mount Sizer: 37.213844, -121.513577
Mount Diablo: 37.881493, -121.914082
Rose Peak: 37.511122, -121.724653


Mission Peak

MISSION PEAK - Elevation 2,517' (767 m)

At 2,517 feet, Mission Peak towers over the southern arm of the San Franciso Bay. It offers a 360-degree panorama that extends from San Jose to Mount Tamalpais. On a clear day, you can even see the Sierra Nevada range to the east.

Original Six-Pack route: Hiking Mission Peak
Distance: 9.2 miles; Vertical +/- 1,992 ft.

Mount Umunhum

MOUNT UMUNHUM - Elevation 3,486' (1,063 m)

The peak was long off limits, but after a major cleanup operation removed almost all of an abandoned air force station, it was opened to the public in 2017. The hike uses a purpose-built singletrack trail that switchbacks up to the summit.

Original Six-Pack route: Hiking Mount Umunhum
Distance: 7.4 miles; Vertical +/- 1,150 ft.

Mount Tamalpais

MOUNT TAMALPAIS VIA STINSON BEACH - Elevation 2,572' (784 m)

This loop trail from Stinson Beach to the summit of Mt Tamalpais is a good choice for a summer hike since it can start in a cool morning fog along the coast. After hiking 8 miles and over 3000 vertical feet, you’ll find yourself on the summit of a mountain with a fire lookout tower.

Original Six-Pack route: Stinson Beach to Mt Tamalpais Loop
Distance: 16 miles; Vertical +/- 3,200 ft.

Mt Diablo

MOUNT DIABLO VIA MITCHELL CANYON - Elevation 3,849' (1,173 m)

This summit provides some of the best views in the Bay Area. On a clear day, you can see the Golden Gate Bridge and even the Farallon Islands beyond. To the east, the Sierra Nevada Range. There is a line-of-sight with the summit of Half Dome in Yosemite. 

Original Six-Pack route: Hiking Mount Diablo via Mitchell Canyon Visitor Center
Distance: 13.2 miles; Vertical +/- 3,274 ft.

Sizer Loop in Henry Coe SP

MOUNT SIZER - Elevation 3,215' (980 m)

This hike steeply climbs and descends several ridges. Mount Sizer is the high point in the park along Blue Ridge. This loop is a clockwise loop from park headquarters that ascends “The Shortcut”– often cited as the steepest trail in the Bay Area. Includes an optional side trip to Jackass Peak.

Original Six-Pack route: Mount Sizer and Jackass Peak
Distance: 16 miles; Vertical +/- 4,400 ft.

Rose Peak

ROSE PEAK - Elevation 3,817' (1,163 m)

This hike through the Ohlone Wilderness travels rugged terrain and rolling green hills, with an optional detour to seasonal Murietta Falls. 

Original Six-Pack route: Rose Peak from Del Valle Lake
Distance: 20.2 miles; Vertical +/- 4,500 ft.

Mission Peak

By Michelle | March 18, 2018 | 2 Comments

Peak Mission Peak Group   Trailhead Horse Haven Trail Started at Stanford parking lot trailhead at 7am. Beautiful green hills and was greeted with plenty of cows along the way. It was gradual steep inclined about 3 miles up to the peak. Ran 3 miles back down on a different trail. Awesome workout! Users who […]

Mission [Peak] Accomplished

By jntherrera | March 17, 2018 | 0 Comments

Peak Mission Peak Group   Trailhead Mission Peak Trailhead [Standford Ave Parking Lot] I tracked it at 6.7 mi. 2111 ft elevation gain. Very muddy most of the trail. Views are amazing and weather was perfect.

What The HAIL Mt. Sizer

By Emma M | March 17, 2018 | 0 Comments

Peak Mount Sizer Group Solo 🙂 Trailhead Dunne Ave Headquarters/Hobbs Road This was a really challenging hike! It rained and it HAILED 5 TIMES! Also found out my boots aren't waterproof! Yikes! For a (much) more detailed story, check out my blog!

The Vulture visit Mission Peak

By John Minkema | March 3, 2018 | 2 Comments

Peak Mission Peak Group N/A Trailhead Stanford Avenue Staging Area [FTL] – This hike had it all hail, rain, wind, thunder, and muddy patches but in the end made it to the peak. 7.61 Miles Ascent 2,128 ft (-2,121) 11 #Geocache(s) 2 #TravelBugs 6:25 Total Time Users who liked this:

Mount Diablo Hike

By Michelle | February 25, 2018 | 0 Comments

Peak Mount Diablo Group Rough, Rugged & Ready group Trailhead Regency Dr. Hiking at Mount Diablo was strenuous. 16 miles round trip, very steep inclined but the view was amazing. Completed our hike in 7 hrs. Loved every moment of the hike. Already planning to go again in less time.

Mt. Um!

By Emma M | February 18, 2018 | 0 Comments

Peak Mount Umunhum Group Solo 🙂 Trailhead Sierra Azul Open Space Preserve Trailhead I hiked Mt. Umunhum on a pretty cold day, theres lots of tree cover so I could see my breath almost all the way up! It was a beautiful trail, I really enjoyed it! You can read more in my blog post […]

Mission Peak or Bust

By Emma M | February 10, 2018 | 0 Comments

Peak Mission Peak Group Solo 🙂 Trailhead Mission Peak Trailhead I hiked mission peak on February 10. It was a nice warm day and I got there mid-afternoon. It was pretty crowded but it was still great! I wrote more about my experience on my blog at: 🙂

Sizing up Mount Sizer

By Jeff Hester | February 7, 2018 | 0 Comments

Peak Mount Sizer Group Solo Trailhead Coe Ranch Beautiful, clear day. Drove down to Henry Coe State Park early in the morning and started hiking shortly after sunrise. Similar to the Rose Peak hike, this one has several ridges to climb and descend before finally reaching the ridgeline that Mount Sizer sits on. Took this […]

This “Rose” is a tough one!

By Jeff Hester | January 30, 2018 | 0 Comments

Peak Rose Peak Group Jason F. Trailhead Vallecito Trail Rose Peak sounds so sweet, but this hike was tough. Came in just under 20 miles and 4,974′ of ascent. The summit itself is not so high, but there is a LOT of up-and-down on this route. It can be done as a day hike or […]

First time up Mount Diablo

By Jeff Hester | January 26, 2018 | 0 Comments

Peak Mount Diablo Group @alpharoaming Trailhead Mitchell Canyon Visitor Center Crisp, perfect day for hiking! Started at the Mitchell Canyon Visitor Center, where there were huge flocks of wild turkeys wandering around. Took the steep route up to Eagle Peak, following the ridgeline to the saddle, then winding our way up the final ascent to […]