Inyo Craters: Volcanic Wonders of Mammoth Lakes

Explore the Inyo Craters near Mammoth Lakes: Witness emerald lakes nestled in volcanic craters, hike through scenic forests, and discover the region's dynamic geological history.

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Inyo Craters

The Inyo Craters, a testament to the region's volcanic past, are a must-see natural attraction near Mammoth Lakes. Formed approximately 600 years ago by powerful steam explosions, these three craters offer a glimpse into the area's dynamic geological history. The two southernmost craters, each roughly 660 feet in diameter and 200 feet deep, cradle serene, emerald-green lakes fed by snowmelt and rainwater, their colors derived from dissolved minerals. A relatively easy 1.4-mile round-trip hike leads visitors through a picturesque forest of Jeffrey and Ponderosa pines to the crater rims, where panoramic views of Mammoth Mountain and the Minaret Range await. The trail offers a family-friendly experience, showcasing the unique lunar-like landscape sculpted by volcanic forces. Open from 6:00 a.m. to 10:00 p.m., the craters provide a memorable outdoor adventure, blending natural beauty with geological intrigue.

A brief summary to Inyo Craters

Mammoth Scenic Loop, Mammoth Lakes, California, 93546, US
+1760-924-5551
Visit website

Monday 12 am-12 am
Tuesday 12 am-12 am
Wednesday 12 am-12 am
Thursday 12 am-12 am
Friday 12 am-12 am
Saturday 12 am-12 am
Sunday 12 am-12 am

Local tips

Visit during the early morning or late afternoon for the best lighting and fewer crowds.
Bring binoculars for enhanced wildlife viewing and to better appreciate the crater details.
Wear sturdy hiking shoes as the trail can be uneven in places.
Check the weather forecast before you go, as conditions can change rapidly at higher elevations.
Consider visiting between June and mid-October for optimal access, as heavy winter snows can limit access.

Getting There

Driving

From Mammoth Lakes, head west on CA-203 (Main Street/Minaret Road) towards Mammoth Mountain Ski Area. After passing through The Village at Mammoth, turn right onto Mammoth Scenic Loop. Continue for approximately 2.5 miles, then turn left onto Inyo Craters Road (unpaved). Follow this road for about 1.3 miles to the trailhead parking area. Parking is free, but can be limited during peak season. The road is not plowed in winter, so access may be restricted.

Discover more about Inyo Craters

The Inyo Craters, located just outside of Mammoth Lakes, California, present a captivating glimpse into the region's fiery geological past. These three phreatic explosion craters, aligned north to south, were born from intense steam explosions around 600 years ago, marking the last major volcanic activity in the area. The craters offer a unique landscape, a blend of serene beauty and raw geological power, making them a popular destination for hikers and nature enthusiasts. The two southernmost craters are the most prominent, each averaging about 660 feet in diameter and plunging to depths of approximately 200 feet. These impressive depressions cradle small, tranquil lakes, their waters displaying a distinctive emerald-green hue. This vibrant color is attributed to dissolved minerals leaching from the surrounding volcanic rock, creating a striking contrast against the stark white chalky crater rims. The northernmost crater, situated on the summit of Deer Mountain, is smaller, irregular in shape, and remains dry. The Inyo Craters were formed in the mid-14th century, shortly after the eruption of Deadman Creek, Obsidian, and Glass Creek domes in 1350 CE. Despite apparent differences in shape and vegetation, all three craters formed at nearly the same time, probably within hours or days. They erupted in succession from north to south. The ground around the craters is broken by many north-trending faults and fissures that probably formed as a consequence of uplift and expansion above a dike (intruding magma). The rising magma most likely encountered water causing explosive flashing of the water to steam. The steam formed a vent through the overlying andesitic rocks, producing the Inyo explosion craters and surrounding phreatic deposits. Surprisingly no juvenile rhyolite magma reached the surface during the eruptions. The hike to the Inyo Craters is a relatively easy 1.4-mile round trip, making it accessible to families and casual hikers. The trail meanders through a beautiful forest of old-growth Jeffrey and Ponderosa pines, offering a pleasant and shaded walk. As you approach the craters, the landscape transforms, revealing the chalky white volcanic terrain that characterizes the area. The trail climbs gradually, providing stunning panoramic views of the surrounding landscape, including the majestic Mammoth Mountain and the jagged Minaret Range. Reaching the rim of the southernmost crater, visitors are greeted with a breathtaking vista. The turquoise-green lake shimmers below, framed by the steep cliffs of the crater walls. The contrast between the lush forest and the stark volcanic landscape is truly remarkable, offering a unique and unforgettable experience. The second crater, slightly uphill from the first, offers a different perspective, while the summit crater on Deer Mountain provides a glimpse into the area's volcanic history. The Inyo Craters are part of the larger Mono-Inyo Craters volcanic chain, a 25-mile stretch of volcanic features that extends from Mono Lake to south of Mammoth Mountain. This chain is a testament to the ongoing volcanic activity in the region, with eruptions occurring at intervals of 250 to 700 years over the past 5,000 years. While future eruptions are possible, scientists believe they will likely be similar in size to the small to moderate events of the past. The town of Mammoth Lakes itself sits atop ash beds from the Mono-Inyo eruptions, a constant reminder of the region's volcanic nature. The area is also home to hot springs and steam vents, further evidence of the geothermal activity beneath the surface. Visiting the Inyo Craters offers a chance to witness the power and beauty of nature's forces. The unique landscape, the serene lakes, and the panoramic views combine to create an unforgettable experience. Whether you're a seasoned hiker or a casual nature lover, the Inyo Craters are a must-see destination in the Mammoth Lakes area. Beyond the geological wonders, the Inyo Craters area also provides opportunities for wildlife viewing. The surrounding forest is home to a variety of birds and mule deer, adding to the natural appeal of the area. The Mammoth Scenic Loop, which provides access to the craters, is also a popular destination for road cycling and snowplay, offering year-round recreational opportunities. The Inyo Craters are a reminder of the dynamic forces that have shaped the Eastern Sierra Nevada. They are a place where visitors can connect with nature, learn about geology, and appreciate the beauty of this unique landscape. A visit to the Inyo Craters is an enriching experience, offering a glimpse into the past and a reminder of the power that lies beneath our feet. To make the most of your visit, be sure to wear comfortable shoes, bring plenty of water, and be prepared for changing weather conditions. The area is open from 6:00 a.m. to 10:00 p.m., allowing ample time to explore the craters and enjoy the surrounding scenery. Whether you're a seasoned geologist or simply a curious traveler, the Inyo Craters are sure to leave a lasting impression.

Iconic landmarks you can’t miss

Mammoth Mountain Statue

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Shelter Distilling

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Mammoth Lakes, CA 93546

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Knight Wheel (Historical Landmark)

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Ansel Adams Wilderness

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Sierra National Forest

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Discover breathtaking mountain scenery and abundant natural resources in the Sierra National Forest, a year-round outdoor paradise in the heart of California's Sierra Nevada.

Mono Lake Vista Point

45.0 km

Experience the breathtaking beauty of Mono Lake from this easily accessible vista point, offering panoramic views of tufa towers, the Mono Basin, and the Sierra Nevada.

Vernal Falls Footbridge

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Hike the iconic Mist Trail to Vernal Fall Footbridge for breathtaking views of Yosemite's powerful waterfall and stunning granite landscape.

Curry Village

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Experience Yosemite Valley's charm at Curry Village: lodging, dining, activities, and stunning views beneath Glacier Point.

The Ahwahnee

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Experience Yosemite's grandeur at the Ahwahnee Hotel, a historic landmark offering luxury, stunning views, and a connection to the park's natural beauty.

Yosemite National Park

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Explore the breathtaking beauty of Yosemite National Park, a natural wonder showcasing stunning granite cliffs, majestic waterfalls, and rich biodiversity.

Yosemite Conservation Heritage Center

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Discover Yosemite's past and the Sierra Club's legacy at this historic landmark, offering exhibits, a library, and conservation insights.

Housekeeping Camp

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Experience Yosemite's beauty with a touch of comfort at Housekeeping Camp, offering rustic lodging and stunning views in the heart of Yosemite Valley.

Sentinel Dome

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Hike to Yosemite's Sentinel Dome for panoramic views of Half Dome, El Capitan, and iconic landmarks. An unforgettable vista awaits!

Yosemite Valley Welcome Center

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Start your Yosemite adventure at the Welcome Center: expert advice, maps, and resources for exploring this iconic national park.

Unmissable attractions to see

Earthquake Fault

4.3 km

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Adventure Center

5.1 km

Experience year-round adventure at Mammoth Adventure Center: family-friendly activities, mountain access, and stunning views in the heart of the Eastern Sierra.

Minaret Vista

5.9 km

Experience breathtaking panoramic views of the Ansel Adams Wilderness and the iconic Minarets from this easily accessible vista point, a must-see destination near Mammoth Lakes.

Mammoth Mountain Ski Area

6.0 km

Experience the thrill of Mammoth Mountain, California's premier year-round alpine destination, offering world-class skiing, snowboarding, hiking, and breathtaking scenery in the Eastern Sierra Nevada.

Camp High Sierra

6.1 km

Discover a historic family campground in Mammoth Lakes, offering rustic cabins, tent & RV sites, and a central location for exploring the Eastern Sierra's outdoor adventures.

Old Shady Rest Campground

6.2 km

Experience classic camping in Mammoth Lakes: Old Shady Rest Campground offers a serene escape amidst Jeffrey pines, close to town and Sierra adventures.

Mammoth Lakes Welcome Center

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Shady Rest Park

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Experience year-round recreation at Shady Rest Park in Mammoth Lakes, offering sports fields, picnic areas, a skate park, and winter trails for skiing and snowshoeing, all amidst a scenic Jeffrey pine forest.

Mammoth Mountain

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Upper Panorama Gondola Building

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Ascend to the summit of Mammoth Mountain via the Upper Panorama Gondola for breathtaking views, mountaintop dining, and a unique high-altitude experience in the Sierra Nevada.

Mammoth Creek Park

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Mammoth Ski Museum

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Twin Lakes Vista

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Mammoth Museum at the Hayden Cabin

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Discover Mammoth Lakes' rich history at the Mammoth Museum, housed in the historic Hayden Cabin, with exhibits, events, and a serene creekside setting that brings the past to life.

St. Joseph Church

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Experience delightful New American cuisine at Morrison's Restaurant and Bar in Mammoth Lakes – perfect for families and food lovers alike!

Explore the ultimate snowboard shop in Mammoth Lakes with expert gear, community events, and quality service for every level of rider.

Essential bars & hidden hideouts

Side Door Wine Bar & Cafe

5.1 km

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Dry Creek Bar

5.1 km

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Tusks Bar

5.1 km

Experience the vibrant atmosphere of Tusks Bar in Mammoth Lakes, where live music and sports create an unforgettable experience.

Clocktower Cellar

5.2 km

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Grizzly Bar

5.3 km

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Mammoth Brewing Company

5.3 km

Experience the best of Mammoth Lakes at Mammoth Brewing Company, where craft beer meets breathtaking scenery and great food.

Salsa's

5.5 km

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Steeps Bar

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Liberty Sports Bar and Grill

5.9 km

Experience the best of American cuisine and lively sports atmosphere at Liberty Sports Bar and Grill in Mammoth Lakes.

Black Velvet Coffee Roaster | Espresso & Wine Bar

5.9 km

Discover Black Velvet Coffee Roaster, a delightful espresso bar in Mammoth Lakes offering artisanal coffees and exquisite wines in a cozy atmosphere.

Black Velvet Coffee Roaster | Espresso & Wine Bar

The Shed | Wine & Charcuterie

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Basin Bar

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Unwind at Basin Bar in Mammoth Lakes, where friendly vibes and local brews blend seamlessly for an unforgettable après-adventure experience.

Distant Brewing

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Bevi Bene

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Mammoth Rock 'N' Bowl

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Your Ultimate Free Travel Guide

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Inyo Craters: Volcanic Wonders of Mammoth Lakes

A brief summary to Inyo Craters

Local tips

Getting There

Driving

Unlock the Best of Inyo Craters

Buy tickets

Book tours with entry

Book tours without entry

Discover more about Inyo Craters

Iconic landmarks you can’t miss

Mammoth Mountain Statue

Shelter Distilling

Mammoth Lakes, CA 93546

Knight Wheel (Historical Landmark)

Ansel Adams Wilderness

Sierra National Forest

Mono Lake Vista Point

Vernal Falls Footbridge

Curry Village

The Ahwahnee

Yosemite National Park

Yosemite Conservation Heritage Center

Housekeeping Camp

Sentinel Dome

Yosemite Valley Welcome Center

Unmissable attractions to see

Earthquake Fault

Adventure Center

Minaret Vista

Mammoth Mountain Ski Area

Camp High Sierra

Old Shady Rest Campground

Mammoth Lakes Welcome Center

Shady Rest Park

Mammoth Mountain

Upper Panorama Gondola Building

Mammoth Creek Park

Mammoth Ski Museum

Twin Lakes Vista

Mammoth Museum at the Hayden Cabin

St. Joseph Church

Essential places to dine

The Mill

Austria Hof Restaurant

Smokeyard BBQ and Chop Shop

Lakanuki

Mammoth Pizza Co & Slice Bar

The Yodler Restaurant & Bar

Mountainside Bar & Grill

Skadi

Burgers Restaurant

Toomey's

Petra's Bistro & Wine Bar

Whitebark Restaurant & Lounge In The Westin Hotel

The Eatery at Mammoth Brewing Company

The Loco Frijole

Morrison's Restaurant and Bar

Markets, malls and hidden boutiques

McCoy's

Alpine Approach

CHATO boutique

Mammoth Sports - The Village

Busy Beez General Store

Mammoth Shirt Co.

The Village At Mammoth

Mammoth Memories

Red Rooster Shopping Center

A-Frame Fine Wines & Spirits

The Cactus & The Hawk

ASCENT Cannabis Dispensary & Delivery Mammoth Lakes

La Tiendita

Summit 93546

Wave Rave Snowboard Shop

Essential bars & hidden hideouts

Side Door Wine Bar & Cafe

Dry Creek Bar

Tusks Bar

Clocktower Cellar

Grizzly Bar