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Mt. Diablo State Park (Summit Hike)**** HIKE CANCELLED DUE TO MUDDY CONDITIONS *



This hike is being rated

"DIFFICULT". You need to be in very good physical condition to attend. Total elevation gain is approximately 3500ft, about 12 miles long and I estimate that it will take 6-7 hrs to complete. On the day of the hike you must bring a 2 liter capacity water pack or equivalent of water bottles in a backpack, lunch and snacks, sturdy hiking shoes and hiking poles are recommended for those of you that use them. This is an extremely strenuous hike with slippery steep shale sections but the rewards when you reach the summit make this hike well worth the effort.

The following is a quote from the California Parks and Recreation Department " From the Golden Gate to the Farallon Islands, from the High Sierra to the Central Valley—this is the sweeping panorama you can savor from atop Mount Diablo. Geographers claim that hikers can see more of the earth’s surface from the top of Mount Diablo than from any other peak in the world with only one exception: Africa’s legendary 19,340-foot Mt. Kilimanjaro". How AMAZING is that, and right in our own backyard!!!

NOTE: Out of consideration for others, please don't try to hike beyond your own capabilities. Mt. Diablo State Park doesn't allow dogs within the park boundaries.


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  • Kirk


    Black Diamond Mines Hike has a sand stone base throughout the majority of the hike, which means relatively dry conditions even though it rained today. Should be a beautiful sunny day for the hike tomorrow.

    April 4, 2014

  • Linda

    Kirk, can you think about an alternative if this is cancelled...

    April 2, 2014

    • Kirk

      Hi Linda, I'm going to post a Black Diamond Hike to replace the Summit HIKE.

      April 2, 2014

  • Lorretta

    Just had oral surgery, thought I might be able to do it but it's not going to happen. Enjoy if you go. Although I am not going I agree with Kirk, it's hard to keep your boots on when that adobe clay gets wet.

    April 2, 2014

  • Kirk

    Unfortunately, If we get any more rain between now and Saturday I will reschedule this hike for another day. Donner Canyon's base is primarily made up of clay, which means, it sticks to the bottom of your boots like glue and continues to cake on as you go which doesn't make for a very enjoyable hike. On the brighter side, we need this rain :)

    April 1, 2014

  • Carolyne

    Kirk...if it's really wet from the rains this entire week, will the hike still happen?

    April 1, 2014

    • Linda

      Kirk... pleassssee say YES!!!

      April 1, 2014

  • Kris B.

    I can't make this one because I am running a half marathon on April 6. Is there anyone that wants to do this hike this Sunday March 30? I'd want to hike it at a pretty good pace! Message me if you are interested.

    March 28, 2014

  • Kathy L.

    If I wasn't being abducted by Mike to celebrate my birthday, I would be there. Thanks for posting a great hike!

    1 · March 23, 2014

  • Carolyne

    I'm a maybe if I can get out of carpool mom duties!

    March 23, 2014

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