Black Point-Green Point is a census-designated place (CDP) in Marin County, California, United States.

It is unincorporated, sitting between the city of Novato to the southwest and the Petaluma River and San Pablo Bay to the northeast.

[3] Black Point was part of the Rancho de Novato land grant.

The 1880 History of Marin County by Alley, Bowen and Co. mentions "a man by name of Day" who "settled on an island in Novato township which has since borne his name" in 1851.

Lumber that came from Black Point was used to build part of the USS Saginaw, a steamer built at the Mare Island Naval Shipyard.

When both the county and the state refused to build a levee, he spent a small fortune deepening the creek and taking water out of the marsh.

[5] Black Point-Green Point is located along the Brazos Railroad Subdivision, with Northwestern Pacific running trains through twice a week.

The Petaluma River, which forms the northeast edge of the community, is the Sonoma County line.

[2] Black Point-Green Point is also located near various public lands, such as the Rush Creek Open Space Preserve and the Vince Mulroy Wildlife Prerserve.

There are several businesses in Black Point-Green Point, such as Rossi's Deli (an old gas station built in the 1930s), Penske Truck Rental, Kelleher Lumber, and two self-storages.

[8][9] The steep scars are still visible, although the flattened area is now part of the StoneTree Golf Course.

[10] Black Point was the location of the annual Northern California Renaissance Faire from 1971 to 1998, after which the site was developed into the StoneTree Golf Course.