This is an excellent view of where the Henry’s Fork and South Fork of the Snake River join forming the Snake River. The actual confluence is hidden behind the South Butte. These rivers support one of the most extensive cottonwood gallery forests remaining in the western United States.
Narrow leaf cottonwoods, Populus angustifolia, need direct sunlight and up to 100 gallons of water per day per tree. The cottonwood is a vital part of the river environment. Roots stabilize the river bank, preventing erosion, and mature trees provide habitat for wildlife.
Bull Moose in the cottonwoods at Lufkin Bottom on the South Fork of the Snake River. Photography: BLM