US30 through Wyoming and Idaho is much like historic route 66 through Arizona, and New Mexico. It was the old highway across the US, winding its way through the center of many western towns. Its traffic has been usurped by Interstate 80 and Interstate 84. However, you can still have some adventures when you get off the Interstate and onto the old road.
Twin Falls, Idaho (18 pictures) Highway 30 runs south of the Snake River through Twin Falls. A short detour will bring you past both the Twin Falls and Shoshoni falls.