Ruud Mountain
Known for its brutal ascent of nearly 1000 feet over less than mile, Ruud Mountain is perhaps the most difficult trek among the popular routes near Ketchum and Sun Valley. Those who take it on are rewarded with fantastic 360° views of the Wood River Valley and peaceful wind-swept meadows, often awash in wildflowers in mid-summer. Ruud’s distinctive ridge looms over many popular Sun Valley attractions, so perhaps the greatest prize for hikers who take it on is later looking up and relishing the fact that they conquered the climb.
A singular feature of the hike is the Ruud Mountain chairlift that lines portions of the intense climb. Built over the years 1937-1938, it is the third oldest chairlift in the world, surpassed only by two lifts built a year earlier, one on nearby Proctor Mountain and another on Dollar Mountain. Both of those lifts were torn down decades ago, making Ruud Mountain’s lift the oldest still standing. The top terminal, with its newly reconstructed hut designed to match the original which deteriorated under the pressure of 80 winters, is an excellent place to rest and snap a few panoramic photos.
1820 total elevation gain
Toughest Mile: 18.9%There are no bathroom facilities at the trailhead.

Go straight and quickly come to the Hemingway Memorial.

Wind to your right and around the memorial. Go downhill and come to a T-junction with a wide path. Turn left.

Trail Creek flows to your right as you continue along the wide path. Just before .2 miles, the path splits. Veer right and cross a bridge over the creek. This will be the last source of water until you return to this spot at the end of the hike.

Directly after the bridge, turn left and head up a very short, steep hill and turn left again at the top.


As you wind around the hillside, you will see Trail Creek Cabin to your left. After a short descent, you will come to a four-way junction at .4 miles. The trail straight ahead takes you to South Aspen and the path to your left leads to Corral Creek. Turn right and go up a small hill.

At the top of the hill, you will come to a wide posted junction. Shooting to your left will be the beginning of the Proctor Mountain hike. To the right looms the Ruud Mountain trail, aggressively climbing up a ridge.

Over the next .85 miles, you will climb nearly 1000 feet through a sage brush field, with only a few lone pines to protect you from the sun. There are no switchbacks, so the trail tests the achilles along with the lungs. Each step brings you closer to the Ruud Mountain lift that hangs to your right.

The trail finally flattens as you reach the top terminal of the lift at about the .9-mile mark. You will have climbed about 600 feet over the past half mile. Take a few moments to catch your breath and enjoy the view of Baldy and Dollar Mountains. It is also interesting to observe that the basic structure of fixed-grip chair lifts are not all that different today than they were back in the late 1930s. Ruud’s top -drive/bottom-tension design is still in wide use today.


After resting, turn around to face your next challenge. The trail continues up a large knob with a rounded point. Mercifully, this part of the trail is a bit more snaky than the straight shot to the top terminal, but the pitch is still severe and shade is sparse. There is a spur off to the left at the mile mark, but continue straight up the hill.

The ascent finally relaxes just after the 1.25-mile mark as you reach a mountaintop meadow, though there are a few spikes of climb as you continue across the shoulder. Just before hitting 1.6 miles, the trail descends, but do not be fooled as at 1.8 miles the trail begins to rise again. Shortly after it ascends, come to a junction with a trail to your right that heads towards the Elkhorn section of Sun Valley. Stay left.

The climb intensifies once again after you pass the junction, eases again at the 2-mile mark and then quickly climbs again. As you continue up the hill, you will see the final push as the trail rise dramatically on the hill in front of you.

As you gain the final hill on Ruud, a trail will jut left to a small knob. It is worth the few extra steps for the view of the valley cut by Trail Creek. Just ahead are foothills framed by the rugged Boulder Mountains.

Head back to the main trail and turn left to begin the long descent. As you continue, notice a trail headed straight up a mountain. Thankfully, that is not part of the Ruud Mountain loop. As you curl to the left, walk along a ridge with straight-on views of the Boulder foothills and Sun Valley’s gun club at their feet. Continuing on, you will see the Proctor Mountain trail below and to the left. You will connect with that trail to complete the loop.
For the remainder of the hike, ignore all the spurs shooting off from switchbacks. At 2.8 miles, enter the forest and re-emerge into the sun at 3 miles. There are good views of Sun Valley, including the White Clouds golf course.
At about 3.2 miles, come to the junction with the Proctor Mountain trail and continue straight.

From here, the trail slightly descends along an open mountain top covered in sage. Magnificent views of Bald Mountain and much of the valley open as you continue down the hill.

At 4.2 miles, there is an offshoot to the right that leads to a bench memorializing Kim Germer-Prew, a Sun Valley local and hiking enthusiast who passed away in 2014 after battling cancer. Just before 4.3 miles, come to a junction with South Aspen. Stay straight rather than following the sign for Proctor Loop. Shortly afterwards, come to another posted junction with South Aspen/Aspen Loop. Turn left and descend.

The trail continues winding down the hill until it flattens at the valley bottom. Just before the 5-mile mark, take a quick left and then an immediate right to re-connect with the trail that leads back to the trailhead.
Hike Categories
Distance: 4 to 8
Difficulty: Hard
Drive: Easy
Scenery: Spectacular
Shade: Sunny
Solitude: Moderate
Experience: Classics
Feature: Fall Foliage
Locations: Ketchum/SV












