Bay Area Challenge Overview > The Peaks > Mount Sizer
Mount Sizer may be little more than a highpoint on the Blue Ridge, but getting there is what makes this hike a challenge. You'll gain over 3,600 vertical feet in 15 miles, including a climb on one of the steepest trails in the Bay Area, affectionately called “The Shortcut.” Your legs will probably think of a better name for it. 😉
Did you know?
Henry Coe State Park is the largest in the California State Park system.
Mount Sizer Basics
- Summit elevation: 3,214′ (980 m)
- Vertical gain: 3,684′
- Hiking mileage: 15 miles
- Location: Henry W. Coe State Park
Hiking Mount Sizer
This loop hike gives you a grand tour that begins and ends at the park headquarters. There are several campgrounds along the route, so backpacking this loop is a viable option if you want to break it up over a couple of days. You'll climb and descend several times, which accounts for the over 3,600 feet of vertical you'll experience.
Trail Guides
Here are detailed trail guides to give you the information you need about each route:
- Hiking Mount Sizer Loop in Henry Coe State Park – via our sister site SoCalHiker
- Henry Coe: Mount Sizer – via Calipidder
Travel Time
- Drive time from San Francisco: 1 hour, 37 minutes (81 miles)
- Drive time from Oakland: 1 hour, 37 minutes (74 miles)
- Drive time from San Jose: 55 minutes (34 miles)
- Get turn-by-turn directions on Google Maps
Local Tips
- There is a day use fee, payable at the Visitor Center (open weekends) or at the “Iron Ranger” at other times.
- This trail is hot and exposed. There may be water at Pahjuello Spring or Coyote Creek, but be prepared to filter before drinking.
Latest Mount Sizer Trip Reports
These hike logs will give you a feel for what the current conditions are, and the experience from other Six-Pack of Peaks challengers.
Mount Sizer
I kicked off the 2025 SPoP Challenge with one of the harder (the hardest?) hikes on the list. And unlike my usual solo hikes, a
Finishing the year (and the challenge) with a Sizable bang!
Wow, what a killer of a hike! It lived up to its reputation. 4600 elevation gain, and that incline starting at at mile 4.5 was
Hardest and Scariest Hike Yet – Mt Sizer
This hike takes you through some of the most beautiful mountain range views in the area. We saw all the way to Lake Tahoe! Weather
Steepest incline in the Bay Area – Mt Sizer
The scenery of this hike is beautiful! Views of the valley, Sierra and local mountain ranges, and the creeks were flowing well after the rain.
Conquering the Big Burn: A Winter Journey to Mt. Sizer's Summit
We undertook a challenging yet rewarding hike to Mt. Sizer and back, starting from the Manzanita Parking Lot. The original plan was to hike Mount
Mt Sizer
Completed the challenge with a change. Originally scheduled Mount St. Helena to be the last hike and discovered that our trail was closed for maintenance
The Six-Pack of Peaks Challenge
This hike is part of the San Francisco Bay Area Six-Pack of Peaks Challenge, a series of challenging hikes up six, diverse and scenic Bay Area mountains. Sign-up to take the challenge today!
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