Ashton- Tetonia Trail, Marysville, ID.

I’ve gotta tell ya, this former Oregon Short Line rail bed offers some of the most breathtaking views of the Teton Mountain Range you’ll ever see. The trail, sitting at around 5,000 feet elevation, cuts through some seriously gorgeous farmland and gave me flashbacks to those picture-perfect postcards I used to collect as a kid.

Y’know what really gets me excited about this trail? The way it connects these charming little communities while preserving bits of history along the way. You’ll cross over restored railroad trestles that’ll make your jaw drop – some of these beauties stretch up to 800 feet long and tower 120 feet above the canyon floor! And those panoramic views of the Tetons? Simply unreal.

Best Time to Visit

As someone who’s experienced this trail in different seasons, I’d say late spring through early fall (May to October) is your sweet spot. The weather’s usually perfect then – not too hot, not too cold. Summer mornings are especially magical here, with the sun casting long shadows across those endless potato fields and the Tetons glowing in the distance.

But here’s a little secret: September might just be the absolute best month. The tourist crowds thin out, the temperatures cool down nicely, and those fall colors start painting the landscape. Plus, you might catch some of the local harvest activities in the surrounding farmland, which adds this whole other dimension to your experience.

How to Get There

Getting to the Ashton-Tetonia Trail isn’t complicated, but it does require a bit of planning. From Idaho Falls, you’ll want to head north on US-20 toward Ashton. The trail’s main access points are in Ashton and Tetonia, with several spots to hop on in between. I remember my first time trying to find it – almost missed the Ashton trailhead cause I was too busy gawking at the mountain views!

There’s decent parking at both ends of the trail, but I personally prefer starting from the Ashton side. The parking lot there is easier to find and usually less crowded. Plus, this way you’re facing those gorgeous Teton views as you head north.

Tips for Visiting

Listen, after countless trips on this trail, I’ve learned a thing or two that might make your visit even better. First off, bring way more water than you think you’ll need – the high elevation and dry climate can really sneak up on you. And don’t forget your camera! Trust me, you’ll regret it if you don’t capture those trestle crossings and mountain views.

The trail surface is mostly crushed gravel, so while you don’t need super fancy gear, I’d recommend sturdy shoes and wider tires if you’re biking. Bug spray can be a lifesaver during certain times of the year (those mosquitoes can be pretty fierce near the wetlands). Oh, and here’s something I learned the hard way: there aren’t many services along the trail, so pack snacks and basic bike repair tools if you’re cycling.

Weather can change pretty quick up here – I’ve seen sunny skies turn to afternoon thunderstorms in no time. Layer your clothing and maybe throw a light rain jacket in your bag. And if you’re planning to explore the whole trail, consider arranging a shuttle or car spot at the other end – it’s a long way back if you’re doing an out-and-back!

Lastly, take some time to read those interpretive signs along the way. They’re actually pretty interesting and help you appreciate what an engineering marvel these old railroad routes were. And please, remember to pack out what you pack in – let’s keep this awesome trail beautiful for everyone who comes after us!