California · Fishing
Fishing in Mammoth Lakes, California
Mammoth Lakes sits at high elevation in the Eastern Sierra, and the fishing here is almost entirely lake-based — which makes sense given the cluster of alpine lakes that define the area.
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Mammoth Lakes sits at high elevation in the Eastern Sierra, and the fishing here is almost entirely lake-based — which makes sense given the cluster of alpine lakes that define the area. Lake Mary, Twin Lakes, and the campground lakes near the Shady Rest sites (both New and Old) are the main draws, offering lake fishing that's accessible to beginners and worth the time for experienced anglers who know how to read cold, clear mountain water. Pine Glen rounds out the options closer to town. Sherwin Creek is the outlier in this group, listed under surf fishing, which in a mountain context typically refers to shore or bank fishing along moving water rather than ocean-style casting. The season here is compressed by snowpack — most of these waters aren't fishable until late spring, and the window closes again in fall. That short season means crowds on summer weekends, especially around the more developed campground lakes. If you're planning a trip, the difference between a productive morning and a slow one often comes down to timing your casts for early light and understanding that these high-elevation lakes warm slowly, keeping fish active longer into the morning than you might expect at lower elevations.
Frequently asked questions
When does fishing season open at Mammoth Lakes?
The Eastern Sierra general trout season typically opens on the last Saturday of April, but high-elevation lakes like those near Lake Mary Campground and Twin Lakes Campground may still be iced over or inaccessible by road at that point. Realistically, late May through June is when most of these waters become reliably fishable, and July through September is peak season. Check current road and lake conditions with the Mammoth Lakes Welcome Center or Inyo National Forest before you go.
What species can I expect to catch at these lakes?
The lakes around Mammoth — including those near Lake Mary Campground, Twin Lakes Campground, and the Shady Rest sites — are stocked with trout by the California Department of Fish and Wildlife. Rainbow trout are the most common catch. Brown trout are also present in some of these waters. None of the listings in our current data are designated gold medal or wild trout waters, so expect a mix of stocked and holdover fish rather than a trophy wild-trout fishery.
What gear should I bring for lake fishing at this elevation?
A light to medium spinning setup in the 6- to 7-foot range handles most situations at these campground lakes. Power Bait and small spinners like Kastmasters or Panther Martins are standard for stocked trout. If you're fishing Sherwin Creek, a lighter rod and smaller presentation will serve you better along the bank. Bring layers regardless of the forecast — mornings above 8,000 feet can be cold even in July, and afternoon thunderstorms are common in summer.
Do I need a California fishing license?
Yes. Anyone 16 or older needs a valid California sport fishing license to fish any of these waters, including the campground lakes at New Shady Rest, Old Shady Rest, Lake Mary, Twin Lakes, and Pine Glen. You'll also need a second-rod stamp if you plan to fish with two rods simultaneously, which is legal in most of these waters. Licenses are available online through the California Department of Fish and Wildlife or at local sporting goods shops in Mammoth Lakes.
Are these fishing spots good for beginners or families with kids?
The campground lakes near New Shady Rest, Old Shady Rest, and Lake Mary are well-suited for beginners and families — the access is easy, the fish are regularly stocked, and you don't need a boat to reach productive water. Twin Lakes Campground is similarly approachable. Sherwin Creek requires a bit more technique since moving water demands more attention to presentation and reading current, so it's better suited to anglers with some experience.
