About this Trail
This is arguably the steepest trail in the park. The first part is gentle enough, but things get a lot more challenging when you get to the flanks of Mt. Olympia - the total rise occurs in a little over a mile. There are many things to attract your attention on the way and to let you catch your breath - wildflowers well into summer, grotesquely eroded rock formations reminiscent of the American Southwest, the sequence of gradually expanding views. The climax view, of course, is from the summit itself. A panoramic vista that overlooks Morgan Territory to the North and East, Mount Diablo's Summit to the South, and the hamlet of Clayton to the West.
Directions to Trailhead Take Hwy 680 towards Concord/Martinez. Exit at Ygnacio Valley Road. At bottom of off-ramp, turn right at stop light. Continue for 7.5 miles into Concord. Right onto Clayton Road. Continue into the Town of Clayton. Regency Drive is a private residential street with a traffic light at its intersection. Turn right on Regency Drive and park at the end. Regency Gate is down the hill from the end of the street. Take Donner Canyon Road to Cardinet Oaks Trail. Follow Cardinet Oaks to Olympia Trail all the way to the Summit.
Notes on Difficulty RatingThe round trip is 9 miles, with a 2500 foot elevation gain - a 2C.