2011 Map of Warm River

About this map

Henrys Fork and the Warm River confluence anchor the northern landscape of this Fremont County quadrangle, where the river system transitions from recreation at the Warm River Campground to a sophisticated agricultural water network. The terrain is defined by an extensive series of irrigation projects, including the Yellowstone Canal, North Lateral Marysville Canal, and the Farmers Own Canal, which draw from the Fall River to support the high-altitude farming operations. Small rural communities and agricultural junctions like Squirrel and Grainville are connected by a rigid grid of section roads, such as Grainville Rd and Marysville Rd. For family historians, the Squirrel Cemetery remains a central landmark in this corner of Idaho, while Stephens Fish Creek Ranch and Pops Dam reflect the private land holdings and water management structures that have shaped the local economy and geography since the early 20th century.