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On the steep eastern face of the Sierra, where the mountains fall two vertical miles to the desert, Mammoth Lakes is the town that adventure built: a basin of alpine lakes, a geologic freak show of basalt columns, natural hot springs under enormous skies, and, in winter, some of the deepest snow in California.
Know before you go
- Location
- Eastern Sierra, Hwy 395; ~5-6 hrs from the Bay Area (via Tioga Pass in summer)
- Best seasons
- Jul-Sep for trails; Nov-May for snow (the season runs famously long)
- Signature sights
- Lakes Basin, Devils Postpile, Rainbow Falls, Minaret Vista, hot springs
- Access note
- Tioga Pass (the Yosemite shortcut) closes in winter, the drive becomes 7+ hrs via Tahoe or SoCal
- Dogs
- Excellent, national forest trails welcome leashed dogs nearly everywhere
- Altitude
- Town sits at 7,880 ft; trailheads start above 9,000. Take day one easy
Summer: the Lakes Basin and beyond
Ten minutes from town, the Mammoth Lakes Basin strings together Twin Lakes, Lake Mary, Lake George, and Horseshoe Lake beneath serrated peaks, swimmable (briefly), paddleable, fishable, and ringed by trails from flat lakeside strolls to the stout climb up Crystal Lake (3 miles round trip, worth every switchback). The paved Lakes Basin Path makes it bikeable family territory. Ride the gondola to Minaret Vista at 11,053 feet for a view of the Ritter Range that looks Photoshopped.
The don't skip half day: Devils Postpile National Monument: a wall of hexagonal basalt columns so geometrically perfect they look quarried, formed by a cooling lava flow and polished by glaciers. Continue two easy miles to Rainbow Falls, where the San Joaquin River drops 101 feet and throws rainbows on sunny middays. (Summer access is by mandatory shuttle most days, check nps.gov/depo.)
The Eastern Sierra extras
- Hot springs: the volcanic tablelands east of town hide primitive soaking pools with hundred mile views (Wild Willy's is the famous one). Pack out everything; they survive on good behavior.
- Convict Lake: a 10 minute drive south: a 3 mile shoreline loop under one of the most dramatic peak walls in the range. Arguably the best easy hike on the whole 395 corridor.
- June Lake Loop: a 30 minute scenic drive north through a horseshoe of lakes and aspen; in October it's California's best fall color, period.
Winter: deep and long
Mammoth Mountain's stats are silly, 3,100 vertical feet, snowfall measured in tens of feet, a season that regularly runs Thanksgiving to Memorial Day and sometimes into July. Beyond the resort: Tamarack's groomed cross country network in the Lakes Basin, snowshoe routes to frozen lakes, and the town's laid back après scene. Winter access from the Bay Area means the long way around (Tioga closed), so make it a 3 day minimum.
When to visit
July-September is prime trail season (afternoon thunderstorms happen, summit early). October is aspen gold and empty trails. Winter is for snow people. May-June is melt season: waterfalls rage, high trails still buried, mosquitoes attending.
Before you go
Getting there
Mammoth sits on US-395 in the Eastern Sierra: ~45 minutes from Bishop, and from the Bay Area a long haul, either over Tioga Pass (summer only) or the all-year route around. Tioga closes with the first big snow, usually by November. Winter brings chain controls on 395 and town roads.
Live conditions: Google Maps · Caltrans QuickMap · 511.org
Weather right now
High-altitude mountain weather at 8,000 feet: strong sun, cold nights, afternoon summer thunderstorms, and deep winter snow.
What to pack
- Layers and a warm jacket year-round
- Chains and winter gear in season
- Strong sunscreen
- Extra water for the altitude
Plan your day
Tell the planner where you're starting from and when, and it builds a timed itinerary from this guide's stops.
🐾 Bringing your dog?
Mammoth may be the most dog friendly mountain town in California, nearly all the surrounding Inyo National Forest trails (Lakes Basin, Convict Lake, hot springs country) welcome leashed dogs, and the town is full of water bowls. Note Devils Postpile allows leashed dogs on trails but the mandatory summer shuttle has rules for pets, check before relying on it. Altitude affects dogs too: shade, water, and rest stops apply double above 9,000 ft.
Quick answers
Mammoth or Tahoe?
Tahoe for the lake and shorter drive; Mammoth for bigger wilderness, fewer crowds, hot springs, and that Eastern Sierra scale. Ideal answer: Tahoe for weekends, Mammoth for the annual big trip.
Is the drive really worth it?
The 395 corridor is one of America's great road trips: Mono Lake, hot creek gorges, and the tallest Sierra faces line the way. The drive isn't the cost; it's part of the product.