South Branch Township is a civil township of Crawford County in the U.S. state of Michigan. The population was 1,638 at the 2020 census.
Communities
- Deerheart Valley is an unincorporated community located along the south branch of the Au Sable River at .
- Eldorado is an unincorporated community in the township along M-18 at . A post office named Jack Pine opened here from 1885 until 1898, and it was then renamed as Jackpine until 1908. The local residents petitioned to have the post office named changed to Eldorado, which was a name for a source of wealth that came from the area's abundant lumber resources. In 1908, the post office named changed to Eldorado, and it remained in operation under that name until being disestablished in 1952.
Geography
According to the United States Census Bureau, the village has a total area of , of which is land and (0.69%) is water.
South Branch Township occupies the southeast corner of Crawford County and is bordered by Oscoda County to the east and Roscommon County to the south. The township takes its name from the South Branch of the Au Sable River, which flows nearly the length of the township, from the southwestern corner north and east to its mouth at the Au Sable River in the northern part of the township.
The Roscommon Zoo is located within the township along M-18.
Major highways
Demographics
As of the census