Green Valley is a small unincorporated community in Lyon County, Minnesota, United States.
Minnesota State Highway 23 serves as a main route in the community.
Green Valley is located between the cities of Marshall and Cottonwood at the junction of Highway 23 and County Road 8.
- Rand McNally Road Atlas - 2007 edition - Minnesota entry
- Official State of Minnesota Highway Map - 2007/2008 edition
- Source: Minnesota DOT map of Lyon County (2006)
Coordinates: 44°31′37″N 95°45′26″W / 44.52694°N 95.75722°W