The southern entrance to Grand Teton National Park, Jackson is on a scenic portion of US 89 that extends south 255 miles from Mammoth Hot Springs to Geneva, Idaho. It is the supply point and center of activity for ranchers and vacationers in Jackson Hole country. Recreation in the mountain-rimmed valley includes boating, fishing, hiking, horseback riding, mountain climbing, downhill and cross-country skiing, snowmobiling, white-water rafting and windsurfing on Jackson Lake. Learn More...