Oct 1, 2024
Burdell Mountain andesite lava flow.
Burdell Mountain andesite lava flow. Mount Burdell is Marin County's largest Open Space District and offers some of the best hiking in the Bay Area, with trails for all abilities.
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Burdell Mountain andesite lava flow.
Burdell Mountain andesite lava flow. Mount Burdell is Marin County's largest Open Space District and offers some of the best hiking in the Bay Area, with trails for all abilities.