6 Peaks Loop is a 16.3 mile moderately trafficked loop trail located near Clayton, California that features a river and is only recommended for very experienced adventurers. The trail is primarily used for hiking, trail running, nature trips, and birding and is accessible year-round.

DISTANCE
16.3 miles
ELEVATION GAIN
4,612 feet
ROUTE TYPE
Loop

birding

hiking

nature trips

trail running

forest

river

views

wild flowers

wildlife

blowdown

rocky

historic site

no dogs

Difficult and challenging loop trail primarily on single track with lots of elevation change. Bag 6 peaks in a day (about 10 hours comfortable hiking speed); Mount Olympia, North Peak, Mt. Diablo Summit, Eagle Peak, Twin Peaks, and Mitchell Rock. Bring lots of water and plan on refilling at the picnic area/parking lot right below Mt. Diablo Summit. Excellent loop trail to experience the mountain.

hiking
1 month ago

Despite many warnings and being advised not too, I hiked this trail for my first time hiking ever. I do not recommend it as it is extremely difficult and in some spots maybe alittle dangerous but I made it, it was well worth loosing the ability to move the next few days and I completed it in about 8 hours!

hiking
1 month ago

So happy to see all pushing for this loop! Such a beautiful time on the trail.

hiking
1 month ago

Nice and challenging hike, with great views. The heat was brutal even though I left early and hiked up in the shade.

2 months ago

Great hike with amazing views of the bay, Diablo and beyond. Uphill and downhill struggle pretty much the whole way! It took us 7.5 hours to do (moving time). This is much longer hiking time for us as the downhill is steep fairly frequently with poor grip. If you can stand the burn and blisters it’s definitely worth it!

hiking
5 months ago

hiking
5 months ago

Hiking on Diablo is one of the biggest reasons why we all over-pay in rent and mortgages. If you’re not making use of such a beautiful mountain, that’s in your backyard, you may as well move to a different state. This is an amazing and challenging hike with phenomenal views, beautiful wildflowers, interesting animals, shade, sun, creeks and lovely smelling vegetation. This hike is full value and I can’t wait to hike it in a wet season to get a different experience. I would give it 4.5 stars only because a couple of areas have poison oak growing over the trail. Not a big deal if you wash everything as soon as you get home, but it slowed my pace and took my eyes off the scenery in some areas. 6 hours moving- 7 hours total.

6 months ago

Thanks to Mike Siders‘ review, I decided to go on this great hike, as I’m in the area for a business trip. I’m glad I did this hike - a great experience in such a beautiful area.

hiking
6 months ago

Wow, this one is a doozy! I followed another review and used Juniper Trail and Meridian Ridge Trail instead of back tracking Not sure if this made it easier or harder but my total distance was just about the same, 16.2 miles and slightly more elevation. I wanted to do more of a loop and was happy about the decision. This is a solid hike but it can get windy on the peaks which can be a bit brutal if you aren't prepared for that. I was actually surprised this hike didn't end up being harder, overall it was super enjoyable but it's definitely a long hike, we finished in a little over 7 hours of moving time. If you want an all day hike and to see all Mt Diablo has to offer, highly recommend this one!

8 months ago

My route is slightly different in two areas: 1. I included the Falls Trail 2. I did not use Bald Ridge Trail to go Eagle Peak. In stead, I use Juniper Trail and Meridian Ridge Trail . This creates a larger loop with little repetition. The view is stunning. But AllTrails’ software problem got exposed again: the recording showed many line segments. That is disgusting.

8 months ago

Great experience! expect to be hiking for 8-10 Hrs based on how often you stop. Plan on bringing at least half a gallon of water per person and plenty of snacks. Mt diablo is an awesome spot to rest before finishing the rest of the trail.

hiking
10 months ago

Difficult and challenging loop trail primarily on single track with lots of elevation change. Bag 6 peaks in a day (about 10 hours comfortable hiking speed); Mount Olympia, North Peak, Mt. Diablo Summit, Eagle Peak, Twin Peaks, and Mitchell Rock. Bring lots of water and plan on refilling at the picnic area/parking lot right below Mt. Diablo Summit. Excellent loop trail to experience the mountain.

hiking
1 month ago

hiking
1 month ago

1 month ago

hiking
2 months ago

hiking
2 months ago

trail running
3 months ago

3 months ago

hiking
3 months ago

hiking
4 months ago

hiking
5 months ago

hiking
6 months ago

hiking
6 months ago

trail running
7 months ago

7 months ago

hiking
8 months ago

hiking
10 months ago