Black Diamond Mines RP - 10 miles/1600ft


This hike will be medium paced as we start late, but I expect to finish at 5pm.  The route will be Stewartville Trail; Upper Oil Canyon; Oil Canyon; Lower Oil Canyon; Star Mine Trail; Stewartville Trail; Ridge Trail; Stewartville Trail

Meeting Point (Address above is only approximate)

On Hwy 4, take the SomersVille exit (26). Drive to the end of SomersVille Rd to the parking lot.  There is a $5 parking fee.  Walk to the Greathouse Visitor Center where we will meet.  I may be a few minutes late as I will be doing a tour before the hike.  Come early to enjoy the Visitor Center. Bring a flash light.

Click >> Hiking Meeting Point Google Map


Click >> For weather forecast

Click >> For Park Info

If you change your mind on going, please e-mail me at least 2 days before the hike or you will be considered a no-show and will still be responsible for payment.

After Hike Event

Muscle Maker Grill

Corner of Lone Tree Way and Golf Course Rd

4621 Golf Course Rd
, CA 94531

IMPORTANT NOTE: Joining this hike is entirely voluntary and participants signing up for this activity fully understand the risks associated with the activity. It is each hiker's responsibility to ensure that s/he is in sufficient fitness and health to participate in this hike and be prepared with the appropriate water, food, clothing, and first aid. Hike organizers make no warranties about the quality, safety, or supervision of these activities.By signing for this event, you are accepting all the rules of this hike.



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  • sungae

    I'm sorry to be a no show. Not feeling good

    March 9, 2013

  • Vicki

    A work commitment came up - so sorry to miss this!

    March 9, 2013

  • sekar

    Stuck in office work. Next time. Everyone have wonderful time.

    March 9, 2013

  • Jane C

    Sorry something came up.

    March 8, 2013

  • Yu-Ju

    Anyone going from Cupertino area doesn't mind a gas sharing and toll paying passenger?

    March 6, 2013

  • Rich

    I have to drop. Have a good time everyone.

    March 6, 2013

  • Amy P.

    I will not be able to attend after all as I have an early dinner for that evening. Will try to make another soon!

    March 5, 2013

  • A former member
    A former member

    Edmond have any spaces opened up or should we look for other options for the wknd, thanks!

    March 4, 2013

    • Edmond

      I suggest looking for other options.

      March 5, 2013

  • Aya

    Hello, I am going to drive from SF and have space in my car. Please email me directly if you are interested to carpool.

    March 4, 2013

    • A former member
      A former member

      Hi Aya: I am going on the hike as well. I live in the Mission. I was hoping that I could carpool with you this Saturday. Thanks

      March 4, 2013

  • A former member
    A former member

    I made other plans but was there last week and it was beautiful. All the flowers are starting to bloom. Have fun.

    March 4, 2013

  • Zuzu

    Actually, Rebecca

    March 4, 2013

  • A former member
    A former member

    Change of plans.

    March 3, 2013

  • Bobbie


    February 19, 2013

  • Philippe

    +guest maybe, will confirm.

    February 19, 2013

  • Nancy

    I've never been to Rick's but I see Skipolinis has a location in Antioch. They have beer and wine.

    February 19, 2013

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