Join the 6th annual

San Francisco Bay Area Six-Pack of Peaks Challenge

now through December 31, 2023

Mount Sizer
Seancam808

My first peak

This was a great hike with awesome views and a couple of places to jump in the river. Very secluded, which I like. We started

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Mount Sizer
Karen Cheeniyil

Sizer XL

Sizer Loop. Counter-clockwise. Cool, cloudy day. Steady drizzle at beginning cleared by 9:30am. Two icy stream crossings were mid-calf high. Brought flip-flops for these moments.

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Mount Sizer
Valerie

Mount Sizer

Beautiful hike. Challenging hills. My favorite was the jackass trail. Absolutely amazing trip!

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Mount Sizer
Adriana Collins

Sizer matters!

A long hike meeting up with lots of great hikers. The Sizer loop is a strong challenge. Saw cougar tracks and lots of snakes. The

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