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The Bay Nature events calendar features events sponsored by Bay Area nature organizations from Sonoma to Santa Cruz. Find guided hikes, learn about Bay Area wildlife, enjoy nature festivals, and more! For Bay Nature-sponsored events click here.

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Big Rock Ridge

Lucas Valley Rd, San Rafael,

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October 2017
Wednesday, October 25 @ 9:00 am - 2:00 pm
big rock

Big Rock Ridge to the Summit

Big Rock Ridge, Lucas Valley Rd, San Rafael, + Google Map
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