Distance: 9 miles
Difficulty: Somewhat strenuous with a short section of hands-and-knees scrambling
The Las Trampas and Bollinger faults combine to give this park its rugged character. On this hike, we will explore some of the rugged parts of the park and take in 360 degree views, deep canyon overlooks, open grassland, and woodland.
We’ll start by ascending the steep Chemise Trail, and then follow the Las Trampas Ridge, until we turn onto the Corduroy Hills Trail that takes us to the top of Eagle Peak. This trail involves a bit of hands and knees scrambling up and down a sometimes loose, narrow trail. We’ll take a short break at the top and enjoy the view of the canyon below us and of Mount Diablo.
After Eagle Peak, we’ll descend eastwards, and then take the Madrone Trail to begin the long climb back onto the ridge to the highest point on the hike at Las Trampas Peak (1827 feet), where we’ll take a second break. Finally, we’ll return by the Las Trampas Ridge and Bollinger Trails.
Note that I will be ardent about keeping the group size no larger than 20 as a short section over Eagle Peak is unsuitable for a large group; we might need to split into smaller subgroups while we pass through this section. The view from Eagle Peak, however, is one of the main highlights of the hike, and you won’t want to miss it! We'll probably post the hike again next year for those who are unable to get onto the list this time around.
Directions: Take 680 to Crow Canyon Road in San Ramon. Take Crow Canyon Road 1.3 miles west. Turn right into Bollinger Canyon Road. Parking is in 4.4 miles at the end of Bollinger Canyon Road in Las Trampas Regional Wilderness. Overflow parking is available about 1/4 mile back down Bollinger Canyon Road.