Imogene Lake + Divide

Sawtooth Wilderness

Sun Valley + Sawtooth Mountains, Idaho

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Imogene Lake + Divide


  • The upper Hell Roaring Lake Trialhead.- Imogene Lake + Divide
  • Hell Roaring Creek below the lake.- Imogene Lake + Divide
  • Looking across the outlet of Hell Roaring Lake.- Imogene Lake + Divide
  • The trail above Hell Roaring Lake crosses some impressive open slide paths.- Imogene Lake + Divide
  • The shrubs take on some beautiful color in September.- Imogene Lake + Divide
  • Several truncheon bridges cross seeps and creeks en route to Imogene Lake.- Imogene Lake + Divide
  • The trail passes several small ponds and lakes before reaching Imogene Lake proper.- Imogene Lake + Divide
  • A nice view from the trail looking west into the Profile Lake Basin.- Imogene Lake + Divide
  • Looking across Imogene Lake from the east shore toward Mount Cramer.- Imogene Lake + Divide
  • The trail hugs the east shore of Imogene Lake and offers some outstanding views to the west.- Imogene Lake + Divide
  • The convoluted shoreline of Imogene Lake.- Imogene Lake + Divide
  • Sunset from north shore of Imogene Lake looking to the Imogene Divide.- Imogene Lake + Divide
  • Glacial polished granite.- Imogene Lake + Divide
  • Sunrise color reflected in an unnamed lake below Imogene Lake.- Imogene Lake + Divide
  • Smooth granite slabs and alpine blue. An unnamed lake above and to the west of Imogene Lake.- Imogene Lake + Divide
  • Unnamed lake above and to the west of Imogene Lake.- Imogene Lake + Divide
  • The convoluted shoreline of Imogene Lake.- Imogene Lake + Divide
  • Scrambling up clean granite slabs toward Peak 10,336.- Imogene Lake + Divide
  • Looking into the upper Imogene basin from the summit of Peak 10,336. Imogene Lake is in the left side of the photo.- Imogene Lake + Divide
  • Several unnamed lakes dot the upper Imogene Basin. Imogene Divide is the low point on the ridgeline in the left side of the photo.- Imogene Lake + Divide
  • Climbing toward the switchbacks below Imogene Divide.- Imogene Lake + Divide
  • Looking down on the the many switchbacks from Imogene Divide.- Imogene Lake + Divide
Overview + Weather
Neat jointed bedrock. Glaciated canyon. Beautiful shoreline. Great camping.
Mosquitos. Hell Roaring approach is somewhat boring.
Sun Valley + Sawtooth Mountains, ID
Pets allowed: 
Net Elevation Gain: 
1,493.00 ft (455.07 m)
Parking Pass: 
Not Required
Preferable Season(s):
Summer, Fall
Suitable for:
Hiking, Horseback
Total Distance: 
12.40 mi (19.96 km)
Trail type: 
Trailhead Elevation: 
7,180.00 ft (2,188.46 m)
Current Local Weather:
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Hike Description

Hike Description


Both Hell Roaring and Imogene Lakes are accessed from one of two trailheads. The road to the upper Hell Roaring Trailhead traverses across the face of a glacial moraine with two difficult crux sections. The first crux has space to turn around for over-committed drivers, while the second does not. Once it turns the corner into the Hell Roaring drainage, the road remains quite narrow and is slow going over the very bumpy flats. A high-clearance four-wheel drive vehicle is recommended.

For hikers without a high clearance four-wheel drive vehicle, the lower trailhead adds about 2 miles to the hike. Mountain bikes can be ridden 3.1 miles from the lower trailhead in about the same amount of time that it takes to drive to upper Hell Roaring.

Imogene Lake and Divide

The mileage indicated is from the Upper Hell Roaring Trailhead. Imogene is a stunning high alpine lake with a complicated shoreline due to the geologic jointing in the underlying bedrock. Several islands dot the lake, the largest of which is connected by an isthmus to the north shore. The trail to Imogene hugs the eastern side of the lake/drainage before making the final climb through numerous switchbacks to the divide with the Yellow Belly drainage.

Hiking distances and ascents are as follows:

• From the Lower Trailhead to Hell Roaring Lake: 4.9 miles, 634 feet.
• From the Upper Trailhead to Hell Roaring Lake: 2.7 miles, 259 feet.
• From the Lower Trailhead to Imogene Lake: 8.4  miles, 1,868 feet.
• From the Upper Trailhead to Imogene Lake: 6.2 miles, 1,493 feet.
• From the Upper Trailhead to Imogene Divide: 8.5 miles, 2,536 feet.

Additional Adventures

From the Imogene Divide it is possible to connect into several different multi-day backpacking loops. The trail drops immediately to Edith Lake in the Yellow Belly Lake drainage. It is also possible to access Virginia Lake over Sand Mountain Pass to the South Fork of the Payette River basin.

Off-Trail Hiking

The trail-less western side of the Imogene Basin is split into two separate alpine cirques topped by Payette Peak and Mount Cramer. There are several unnamed lakes and off-trail scrambles to the surrounding summits that provide ample fodder for exploration.

Technical Climbing

Though all of the established routes in the Hell Roaring basin are centered around the Finger of Fate, The Arrowhead, and formations on Peak 10,272, there may be more climbing potential in the Imogene basin. The buttresses dropping north into Lake 8,733 rise nearly 800 feet and are easily descended on their south faces. The more vertical east face of Point 10,016 does not look terribly promising, but it could yield some lines to adventurous climbers. The north side of Point 9,934 due south of Imogene Lake contains a few snow couloirs and what may be fun and easy Class 5 buttresses to the summit.

Wilderness Regulations

Most of the trail lies within the Sawtooth Wilderness.  Please observe the following  regulations:
• Mountain bikes are not allowed past the wilderness boundary.
• Self administered wilderness permits are required and available at the trailhead.
• Dogs must be on a leash between July 1 and Labor Day.
• Camp 100 feet from trails, lakes and streams.
• Pack out all garbage.
• Human waste should be buried and well disguised in a cat hole that is 6 to 8 inches deep.  Pack out all toilet paper.
• Campfires allowed ONLY in a backcountry pan or fire blanket.
• Campfires are NOT allowed at some lakes and in some drainages in the Sawtooths.  Please review the campfire restrictions at individual trailheads.
• Permits required for all stock use in the wilderness. No grazing allowed in the Salmon River watershed (This includes the Alpine Lake drainage).
• No equine stock at Edith Lake. ALL stock prohibited in the Goat Creek and Alpine Creek (Alturas Lake) drainages.

Reference: All content excerpted from Exploring the Sawtooths - A Comprehensive Guide by Idaho River Publications.

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Field Guide + Trail Map

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Published in collaboration with Idaho River Publications

Our mission is to inspire adventure with beautiful, comprehensive and waterproof map-based guidebooks.  Owner, publisher, and photographer Matt Leidecker, grew up exploring and guiding on the rivers in central Idaho.  His award winning Middle Fork of the Salmon River – A Comprehensive Guide is the standard by which other river guidebooks are measured.  Printed on virtually indestructible YUPO paper, IRP guides are truly unique all-in-one resources for adventure.  Each book is loaded with full-color maps, stunning photographs, and information on the history, geology, and wildflowers.  Visit Idaho River Publications to explore our guidebooks to the Rogue River in Oregon and the mountains of Central Idaho.

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