Irwin is located in the heart of Swan Valley Idaho, just West of Jackson Hole Wyoming and Idaho Falls, Idaho. Its surrounded by beautiful mountains and is just north of the Caribou Mountains and west of the Palisades Range. The Snake River makes its way through. Many people go to Snake River to partake in a number of outdoor activities such as fly fishing! In addition to being in the heart of a gorgeous environment, you're also close to Yellowstone Park, Grand Tetons, and Jackson Hole. Along with fly fishing, there is also an opportunity for rafting, hiking, horseback riding and wildlife tours.