River Run Trail: This trail provides a link to both the BaldMountain and Warm Springs Trails allowing for shorter loops on themountain. Climb 15 switchbacksthrough the steep forest above River Run Lodge. After 3 miles the single-track trail connects with the “MidRiver” ski trail. From here, theroute follows a mountain service road on a steep traversing climb to a knob with a picnic table. Beyond this point, the route becomes the Warm Springs Traverse Trail and continues on the service road, past the bottom of "Flying Squirrel" ski run and down to a junction with the Warm Springs Trail.
From late June through early September, the Sun Valley Resort runs the River Run chairlifts to the top of Bald Mountain. This provides easy access to downhill hiking and mountain biking, dining in one of the mountain restaurants, or simply enjoying the spectacular views from the summit. Uphill hikers generally take the shortest route to the summit via Bald Mountain Trail.
Mountain Biking: There are fourdifferent trails that climb to the top of Bald Mountain. Only two, the Warm Springs and Cold Springs trails, are open to downhill mountain bike traffic from the summit (the Traverse Trail links into Warm Springs Trail about halfway down) The Bald Mountain Trail is open to UPHILL bike traffic only. For uphill biking, Bald Mountain Trail offers the shortest route to the summit. Any of the mountain service roads (dark grey lines) are open to both up and downhill riding and hiking. Bald Mountain has a reputation for rocky trails and flat tires so be sure to bring at least twospare tubes.
For more detailed descriptions, topo maps, and information on the history, geology, and wildflowers of the Wood River Valley pick up a copy of Exploring Sun Valley
online or find it at one of several local shops.