Crossing between Chilly to Sun Valley, Trail Creek Road is a (mostly) dirt road beckoning to be explored. Trail Creek Road meanders for nearly 70 miles through the picturesque landscapes of central Idaho, following creeks, passing through meadows, and summiting at 7,910ft.
The road over the rugged Trail Creek Summit is closed each fall with the coming of the first significant snowfall and reopens in the spring, usually sometime in May.
Offering a breathtaking journey through Idaho’s picturesque landscapes, this scenic route unveils a world of outdoor adventures, historic sites, and endless photo opportunities.
Here are four delightful ways to make the most of your time along Trail Creek Road.
- Know Before You Go: there is limited cell service throughout the route. Trail Creek is primarily a dirt road with some pavement on either end. The southwest section is steep and winding in places and vehicles pulling trailers are not allowed.
Hike or Mountain Bike: Embrace the Trails
For active travelers, Trail Creek Road offers an extensive network of trails suitable for both hiking and mountain biking.
Discover the cascading beauty of Fall Creek Falls, embark on the challenging Fall Creek Trail, or savor the panoramic views along High Ridge Trail.
The Boulder Lake Trail and Proctor Mountain Loop are perfect for those seeking a mix of challenge and scenery.
For gravel riders, pedal Trail Creek Road, Wildhorse Creek Road, East Fork Road, or any of the other roads that wind through the Trail Creek Road area.
Camp Under the Stars: Find Your Perfect Spot
Escape the hustle and bustle of everyday life by setting up camp along Trail Creek Road. With several campgrounds to choose from you can fall asleep to a sky full of stars and wake up surrounded by towering trees and fresh mountain air.
- Garden Creek Campground -This recreation site, located in an aspen grove along the Big Lost River has five campsites with picnic tables and fire rings, and a vault toilet. This site has no potable water.
- Wildhorse Campground – Thirteen sites sit in a heavily wooded setting. There are two hand pumps that provide water in the summer months and two accessible vault toilets.
- Phi Kappa Campground – The campground has 21 campsites in a beautiful wooded setting. There is one hand pump for water and two vault toilets.
- Park Creek Campground– This campground has 12 units in a wooded setting. There is one hand pump that provides water and one vault toilet.
- Wildhorse Creek Campground – This campground is off of Trail Creek Road on Wildhorse Creek Road. There are 13 sites in a heavily wooded setting. You will find two hand pumps that provide water and two accessible vault toilets.
- Boundary Campground – Near Sun Valley, this campground has nine sites, drinking water from a hand pump, two vault toilets and a fire ring, grill stand, and picnic table in each site. Camp and picnic sites have hardened aprons allowing wheelchair access.
These campgrounds do not have hook ups or hosts, so be prepared to be self sufficient. Open and close dates are dependent on road conditions and water, if available, is summer-only.
Dispersed Camping: You may camp outside of developed campgrounds in most areas on the National Forests, up to 300 feet from an open road. If you are disperse camping, bring adequate water or be prepared to purify any water source before drinking.
Step Back in Time: Explore Historic Sites
Immerse yourself in the rich history of the region by visiting the historic sites along Trail Creek Road.
Just before embarking on the road, stop by the Earthquake Interpretive Site and Mt. Borah Historical Marker to learn about the seismic events that shaped the landscape and the state’s highest point.
As you journey along, don’t miss the Hemingway Memorial near Sun Valley, a tribute to the legendary writer who found inspiration in the rugged beauty of Idaho’s wilderness.
These historic sites add depth to your adventure, connecting you with the past while surrounded by the natural wonders of the present.
Capture the Beauty: Photography Paradise
Bring your camera or smartphone and indulge your passion for photography along Trail Creek Road. The endless scenic views, with majestic mountains, dense forests, and open meadows, provide the perfect backdrop for stunning shots.
Near the northeast end of the road, Mount Borah (the highest point in Idaho) and the Lost River Range are perfectly framed in the afternoon light.
Fall Creek Falls is an easy walk on an accessible trail to a platform with gorgeous waterfall views.
Whether you’re an amateur or a professional photographer, the changing seasons and diverse landscapes offer countless opportunities to capture the beauty of Idaho. From sunrise to sunset, each moment on Trail Creek Road is a potential masterpiece waiting to be framed.
Trail Creek Road is not just a route from Chilly to Sun Valley; it’s an invitation to explore, experience, and appreciate the wonders of nature. Whether you prefer an active outdoor adventure, a peaceful camping retreat, a journey through history, or a photographic escapade, Trail Creek Road has something for everyone.
Pack your bags, hit the road, and let the enchantment of Trail Creek Road unfold before you.
Feature image credited to Melynda Harrison.
Melynda Harrison writes about travel and outdoor family adventure at TravelingMel.com, YellowstoneTrips.com, and many local and regional publications. When she’s not behind a laptop, you can find her cross-country skiing, hiking, floating a river, or traveling to far-flung locations.
Published on July 28, 2025
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