Located in eastern Idaho with a trailhead in Ashton, Idaho, The Ashton-Tetonia Trail features three landmark trestle bridges and numerous views of the iconic Teton Mountains in every direction. This abandoned rail line turned trail now offers visitors the chance to mountain bike the lush countryside in the summer and fall seasons. Go snowshoeing and cross-country skiing in winter. Here are some FAQ's about the trail. Can I see wildlife on the Ashton-Tetonia Trail? Yes! The Teton Valley is home to a variety of animals like deer, elk, moose, birds, and bears. It’s important to keep in mind that this is bear country and visitors should be bear aware at all times in addition to carrying bear spray. What type of bikes can be used on the Ashton-Tetonia Trail? The Ashton-Tetonia Trail is packed gravel and dirt. Bikes with tires at least 32mm wide are best suited for the trail. Road bikes are not recommended for this route. Is there a shuttle service available for the Ashton-Tetonia Tra...