Hog Island (Petaluma River)

Hog Island is an island in the wetlands of the Petaluma River in Sonoma County, California, located at 38.15917°N, -122.53833°W near the Marin County line. San Antonio Creek enters the river just west of this island. It is mentioned in a newspaper article from 1914.

There are two other islands with the same name in the Bay area: Hog Island, in Tomales Bay in Marin County, and Hog Island in the Sacramento–San Joaquin River Delta in San Joaquin County.