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CORBA is an all-volunteer non-profit organization serving the mountain bicycling community of Los Angeles and its surrounding areas including southern Ventura County. We are dedicated to preserving open space, maintaining public access to public lands, and creating more trail opportunities for all to enjoy. We are a chapter of the International Mountain Bicycling Association (IMBA).

We are passionate about mountain biking, public trails and preserving our public open space for future generations. CORBA is committed to ensuring equal access for all trail users, and to contributing to everyone's enjoyment of the trails. CORBA organizes and coordinates activities that support mountain biking recreation and that promote the conservation, administration and the maintenance of the public lands.

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Recent Meetups

  • 5 days ago · 9:00 AM

    Ahmanson/Cheeseboro Beginner ride

    4 Outdoors Enthusiasts | 4.50

    This ride is hosted by the North Ranch Mountain Bikers: The National Park Service opened the Victory Blvd entrance to the Ahmanson Ranch area (now called... Learn more
  • 5 days ago · 8:00 AM

    Restore Ken Burton Trail - Day 9

    5 Outdoors Enthusiasts

    We'll continue working on the Ken Burton trail. Meet at the Windsor/Ventura parking lot, and be prepared to ride to the top of Brown Mountain. The Forest Service... Learn more
  • 6 days ago · 12:00 PM

    Beginner Ride after the CORBA Skills Clinic

    8 Outdoors Enthusiasts

    This is a fun, no drop guided ride held immediately after the CORBA Skills Clinic so you can practice the skills you just learned! Approximately 8-10 miles with about... Learn more
  • 6 days ago · 8:45 AM

    Free Basic Skills Clinic

    12 Outdoors Enthusiasts | 5.00

    The Introduction to Mountain Biking Skills Clinic is held the first Saturday of each month from 9:00 am to 12:00 pm in Malibu Creek State Park. It is free of charge to... Learn more
  • February 1 · 6:30 PM

    COSTAC Monthly Meeting

    2 Outdoors Enthusiasts

    The Conejo Open Space Trails Advisory Council meets the first Monday of the month to discuss Conejo Open Space Conservation Agency trails issue. The public is welcome to... Learn more
  • See all past Meetups

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Founded Oct 22, 2012

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