Duck Pass, Deer Pass & Mammoth Crest | 22-Mile Sierra Nevada Hike

A 22-mile hike through Duck Pass, Deer Pass, and Mammoth Crest in Mammoth Lakes, California, located in the John Muir Wilderness of the Sierra Nevada. This hike connects three of the most beautiful areas in the Mammoth Lakes region: Duck Pass, Deer Pass, and Mammoth Crest. While many hikers turn around at Duck Lake, the scenery becomes even more remote beyond Duck Pass. The route travels through alpine lakes, granite basins, open ridgelines, and several off-trail sections before reaching Mammoth Crest. It is a long and demanding hike, but one of the most rewarding day hikes in the Eastern Sierra. Trail Information 📍 Location: Mammoth Lakes, California, USA 🥾 Route : Duck Pass Trailhead → Duck Pass → Deer Pass → Mammoth Crest → Lake George Trailhead → Duck Pass Trailhead 📏 Distance: 21.9 miles (35.2 km) ⛰️ Elevation Gain: 4,200 ft (1,280 m) 🏔️ Highest Elevation: 11,271 ft (3,435 m) ⏱️ Total Time: 14 hours 30 minutes ⭐ Difficulty: Strenuous Long distance, high elevation, off-trail sections, and route finding required. Chapters 00:00 Intro 01:00 Entering John Muir Wilderness 01:22 Emerald Lake 02:17 Skeleton Lake 03:36 Barney Lake 04:55 Switchbacks (Barney Lake Overlook) 06:24 Duck Pass 06:42 Duck Lake 09:36 Duck Lake Shore 11:45 Back to Duck Pass 12:58 Deer Pass 14:57 Upper Deer Lake 15:56 Middle Deer Lake 16:10 Lower Deer Lake 17:36 Sierra Nevada Panoramic View 18:49 Mammoth Crest 21:27 Lake George & Lake Mary View 22:33 Looking Back at Mammoth Crest Trail Notes Duck Lake is the most popular destination, but the real adventure begins beyond Duck Pass. The route between Duck Pass and Deer Pass includes sections - without a defined trail. A GPS device or navigation app is highly recommended. Several short snowfields remained in mid-June. The climb back toward Mammoth Crest is the most physically demanding section of the hike. Mammoth Crest offers one of the best panoramic views of the Sierra Nevada. There is a long exposed section with very limited water between Deer Pass and Mammoth Crest. Carry enough water before continuing. Conditions shown in this video were recorded in mid-June. Instagram   / doosview   Blog https://doosview.blogspot.com/2026/07... 📷 Recorded by: Doosview #EasternSierra #DuckPass #DeerPass #MammothCrest #MammothLakes #CaliforniaHiking #SierraNevada #Backpacking #DayHike #OutdoorFilmmaking #DoosView