Stone from the quarry has been used in many places, such as for levee maintenance in Novato and the Sacramento-San Joaquin Delta, and road improvement in Larkspur and San Francisco.

[1] Although the McNear Brickyard had been there since 1870, the land upon which the quarry now stands stayed a dairy farm for longer.

The county subsequently rezoned the land, but the quarry stayed, operating as a nonconforming use which it still does today.

The Quarry's waterfront location makes it simple to load rock directly onto barges for transport.

Much of the rock is a hard, bluish, Franciscan metamorphic sandstone, alongside shale.