Rafting the Pacific Northwest
Several major river systems flow through the Pacific Northwest. The Rogue River, in Oregon is a simple river system that flows directly from the Cascade Range into the ocean, whereas the rivers in Idaho are more complex. The Salmon River, including the Middle Fork, Main and Lower sections, begins and ends within the rugged Sawtooth mountains of Idaho - all within the Frank Church Wilderness - the largest wilderness area in the lower 48 states.
The Snake River begins farther east in the high peaks of the Yellowstone and Teton. The Snake River picks up the Salmon River along the west border with Oregon and then flows into Washington state just before merging with the Columbia River flowing in from British Columbia, Canada.