Mount Wittenberg, Sky Trail and Bear Valley Loop Trail

The Mount Wittenberg, Sky Trail and Bear Valley Loop Trail is a 18.1 km trail that starts in , Marin County, California. Based on our data, the hike is graded as Medium. 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 hike can be completed in approx 4 hrs 32 mins. Caution is advised on trail times as this depends on multiple variables. For more info read about how we calculate hike time.