Lake Mamie is a small, scenic alpine lake in the Mammoth Lakes Basin of the Eastern Sierra Nevada, Mono County, California. It is one of the chain of lakes accessible via Lake Mary Road, just a few miles from the town of Mammoth Lakes.
Location and Access
Lake Mamie sits at approximately 8,900–8,901 feet (about 2,713 meters) elevation, nestled in a sub-alpine forested setting between larger Lake Mary (to the west/upstream) and Horseshoe Lake (to the east). It is easily reachable by car along Lake Mary Road (about 3–3.5 miles from town), with parking and trail access near the Twin Falls Overlook or along the Lakes Basin Path. In summer, facilities like Wildyrie Lodge/cabins nearby offer boat rentals, tackle, and snacks. Winter access is by ski or snowshoe only.
The lake forms part of the broader Mammoth Lakes Basin, a large glacial cirque carved by ancient ice and featuring rugged peaks, including views of Crystal Crag and Mammoth Mountain.
Physical Description
- Size: Roughly 19 acres, making it the smallest lake in the Mammoth Lakes Basin. It has a relatively short shoreline (about half a mile), which contributes to its intimate, protected feel.
- Depth: Shallow, generally around 8–10 feet or so at its deeper points, with excellent water clarity. This shallowness supports good visibility and makes it suitable for certain activities while limiting others (e.g., no motorboats).
- Hydrology: Water flows in from Lake Mary through a canopy of evergreens at the inlet. The outlet feeds a spillway/waterfall that drops toward Twin Lakes below. A dam influences water levels, and the lake is part of the connected basin system.
- Surroundings: Surrounded by towering pines, evergreens, and sub-alpine forest. It lies in a glacial moraine setting within the broader Sierra Nevada landscape shaped by volcanism (including Mammoth Mountain) and glaciation.
The water is typically clear and calm, especially since motorboats are prohibited, preserving a tranquil environment.
Natural Beauty and Scenic Qualities
Lake Mamie is frequently praised for its jaw-dropping scenery despite its small size. It is framed by dense woods, with reflections of snow-capped peaks (like Crystal Crag) and granite features on its clear waters. The setting offers “breathtaking views at every angle,” with light playing across the surface, especially at sunrise, sunset, or from the road crossing above the dam.
One angler/author described it as having “perhaps one of the best views of any lake in the world.” The protected, wooded location makes it feel more intimate and secluded than larger neighboring lakes, with opportunities to spot wildlife such as deer, coyotes, waterfowl, and occasionally bears (especially in summer).
In fall, the area features vibrant colors; in winter, it transforms into a snowy wonderland accessible for cross-country skiing or snowshoeing. The easy accessibility combined with its peaceful character makes it ideal for photography, lounging, and quiet contemplation.
Ecology and Recreation
The lake supports fishing and is regularly stocked with trout, including rainbows, brookies, and notable browns/Alpers trout. It is popular for shore fishing, float tubes, canoes, and kayaks. Dusk is often cited as a prime time.
Other activities include picnicking at scenic spots (with views of Mammoth Mountain and the spillway), short loops or trails around the lake (e.g., an easy ~1-mile Lake Mamie Loop with minimal elevation gain), and general lounging. No swimming is allowed in the basin lakes. Nearby camping is available at sites like Twin Lakes.
History and Naming
The name “Mamie” has a couple of origin stories. One links it to Lake Mary (possibly after Queen Mary), with “Mamie” as a nickname or for a smaller related lake. Another ties it to colorful local figures from the area’s mining-era dancehall days. The basin itself has ties to mining history (e.g., nearby Mammoth Consolidated Mine) and was shaped by the Long Valley Caldera volcanism and glaciation.
Summary of Appeal
Lake Mamie stands out as a gem for those seeking serenity amid stunning alpine scenery. Its small size belies its visual impact and recreational value—offering clear waters, forested shores, mountain backdrops, and easy access without the crowds of larger lakes. Whether for a peaceful paddle, a productive fishing session, a family picnic, or simply soaking in the views, it exemplifies the natural beauty of the Mammoth Lakes area. Visitors should practice Leave No Trace principles, be aware of wildlife (including bears), and check conditions, as the high-elevation environment can change quickly.
This report draws from local tourism, trail, and recreation sources for an up-to-date overview as of 2026. For the latest access, fishing regulations, or safety info, consult Inyo National Forest or Visit Mammoth resources.