McKinnan Gulch

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McKinnan Gulch is a valley in Marin County, California, United States.

It contains a small stream which descends the western slope of the Bolinas Ridge and drains into Bolinas Lagoon.[1]

Near the head of the gulch is an ore vein (reported in 1955) containing chalcopyrite, galena, pyrite, and calcite.[2]

Coordinates: 37°54′46″N 122°39′49″W / 37.912704°N 122.663594°W / 37.912704; -122.663594[3]

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