Trail Running calendar near Caldwell 2026-2027

A two-day trail festival at Bogus Basin featuring an uphill Hill Climb plus 5- and 10-mile races, with proceeds supporting Ridge to Rivers, prize awards, and a youth discount.

A 5K trail run through Montour Wildlife State Park in Emmett, Idaho, that follows mixed surfaces and passes the remains of a former town. The course is about 70% dirt trails and 30% asphalt with some technical sections.

A two day Spartan Trifecta weekend on August 8-9, 2026 at Tom Pence Ranch, featuring Sprint 5 km, Super 10 km and Beast 21 km obstacle races plus kids races, workshops and a four hour Hurricane Heat event.

A trail event in Boise on August 22, 2026 offering 5K and 12K courses that can be run or hiked, with proceeds supporting the Bogus Basin Nordic Team and cash prizes in the 12K divisions.

The 3rd Annual LESS Society Table Rock Hike in Boise follows the Table Rock Trail for about 3.8 miles with roughly 900 feet of gain; proceeds fund scholarships for Idaho students.

A Last Man Standing endurance event on a 4.167 mile loop in Eagle, ID that repeats hourly until only one runner remains. A separate 3 Loop Challenge awards fastest overall times and certain finishes count for the Idaho Trail Ultra Series.

A trail event on September 12, 2026 around the volcanic Crater Rings near Mountain Home, Idaho. Options include a 10K loop on a jeep road or a 2.9 mile out and back to the East Crater viewpoint, with hydration stations and awards.

Experience the extensive single track trails of the Boise Foothills in this premier trail event. Runners can choose between 50 mile, 50K, and 27K distances starting from Fort Boise.

Experience a winter trail race through the Reynolds Creek gorge and Wilson Peak in Idaho. Choose between 10 mile, 20 mile, or 50k distances featuring up to 6000 feet of elevation gain in the stunning Wilson Creek trail system.