11.1 km
~3 hrs 27 min
737 m
"An epic challenge to remember from the heart of Siskiyou"
The Middle Boulder Trail is a 11.1 km looped trail that starts and ends in Callahan, Siskiyou, California. Based on our data, the trail is graded as Difficult. For information on how we grade trails, please read measuring the difficulty of a hiking trail on hiiker. Also, check our latest community posts for trail updates.
This trail can be completed in approx 4 hrs 38 mins. Caution is advised on trail times as this depends on multiple variables. For more info read about how we calculate hike time.
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