Mill Creek is a stream in Marin County, California

Marin County, California

Marin County is a county located in the North San Francisco Bay Area of the U.S. state of California, across the Golden Gate Bridge from San Francisco. As of 2010, the population was 252,409. The county seat is San Rafael and the largest employer is the county government. Marin County is well...

 that is tributary to Richardson Bay

Richardson Bay

Richardson Bay is a shallow, ecologically rich arm of San Francisco Bay, managed under a Joint Powers Agency of four Northern California cities. The Richardson Bay Sanctuary was acquired in the early 1960s by the National Audubon Society. The bay was named for William A...

. It discharges to Bothin Marsh

Bothin Marsh

Bothin Marsh is a half acre wetlands in Marin County, California. Parts of the wetlands are in Bothin Marsh Open Space Preserve, a regional park.-Natural history:The marsh, positioned at the northern arm of Richardson Bay is fed by Mill Creek...

 within a northern arm of Richardson Bay. The stream is also known by the earlier name Old Mill Creek. The upper portions of the stream are associated with the Dipsea Trail.

Prehistory

The local area is rich in Native American

Indigenous peoples of the Americas

The indigenous peoples of the Americas are the pre-Columbian inhabitants of North and South America, their descendants and other ethnic groups who are identified with those peoples. Indigenous peoples are known in Canada as Aboriginal peoples, and in the United States as Native Americans...

 early habitation. Notable nearby archaeological sites include those on Ring Mountain

Ring Mountain (California)

Ring Mountain is an elevated landform on the Tiburon Peninsula in Marin County, California. This mountain was named for George E. Ring, who served as a Marin County Supervisor from 1895 to 1903.A number of rare and endangered flora inhabit Ring Mountain...

.