Mt Diablo State Park Extended Loop is a 27.6 mile moderately trafficked loop trail located near Clayton, California that offers the chance to see wildlife and is rated as difficult. The trail offers a number of activity options.
February 20, 2021Beautiful trip the a range of terrain, the length makes it the only hard part about the trip :)
February 6, 2021Great trail gets the blood pumping!!! wear good boots/ shoes it can get a bit rough
September 7, 2020Magnificent. Lace up and relish the views!
July 3, 2020I really liked this loop, but I was not able to finish it as I ran out of battery on my GPS.
June 6, 2020The first 9 miles is great! The last 18 is very open and exposed. The last uphill is very steep also, which is tough 20 miles in.
November 11, 2018
First to ReviewA challenging hike that explores the diversity of Mt Diablo. Bring plenty of water (4L) or a filtration kit; you can only refill at the South Gate camp ground. Lots of exposure so start very early to avoid heat and complete before dark. Hiking poles recommended as legs will be tired at the end. Please post your experience with this hike when you’re done. Safe hiking!
March 22, 2021February 8, 2021October 18, 2020July 12, 2020June 1, 2020March 27, 2020March 1, 2020September 1, 2019June 2, 2019
