The Gros Ventre River is a tributary of the Snake River, located in western Wyoming, USA. It flows through the scenic Gros Ventre Valley and is known for its beautiful landscapes, including mountains and forests. The river is approximately 30 miles long and is a popular spot for fishing and outdoor recreation. The river's name, which means "big belly" in French, is derived from the Gros Ventre tribe of Native Americans. The Gros Ventre River eventually joins the Snake River, which is a major waterway in the region, contributing to the area's rich ecosystem and recreational opportunities.