Berryessa Peak Trail
Trail in Knoxville Wildlife Area
Berryessa Peak Trail is possibly the hardest hike in Napa County. The trail starts on Berryessa Knoxville Road at mile marker 20 and heads east 7 1/4 miles to the summit with a 3,500 foot elevation gain. The trail is an out-and-back. There are no amenities, so bring plenty of food and water for the 14.5-mile round trip.
The trail passes closely by and/or over private property, so please stay on the trail. As there are transmitter towers on the peak, the last 1.5 miles to the top is along a gravel service road with little shade. There are spectacular views of Lake Berryessa and Yolo County from the peak as well as from many other locations along the trail.