What to expect at Convict Lake

Convict Lake is a high-elevation alpine lake in the Eastern Sierra, about 2 miles south of Mammoth Lakes. It sits at 7,583 feet and holds rainbow trout, brown trout, and brook trout. The lake is roughly 2 miles long and narrow, with steep granite walls on three sides and a meadow at the north end. The water is cold and clear year-round, and the scenery — jagged peaks, conifer forest, and open water — draws both anglers and hikers.

The lake is open to fishing from late April through November, depending on snow melt and road conditions. Peak season runs June through September, when the water warms enough for consistent surface activity and the access road is reliably passable. Spring and fall fishing can be excellent but requires checking current conditions before you drive.

Convict Lake is not a wilderness destination. A paved road reaches the lake, a resort operates there year-round, and the shoreline sees steady foot traffic. But the fishing is genuine — trout average 10 to 14 inches, with larger fish present, and the lake responds well to both fly and spin tackle. The lake's reputation draws experienced anglers, so expect company on weekends and during peak weeks.

Key Takeaways

  • Convict Lake holds rainbow, brown, and brook trout in cold, clear water at 7,583 feet elevation, with fish averaging 10 to 14 inches.
  • The lake opens in late April and closes in November; peak season is June through September when water temperature and access are most reliable.
  • A paved road and resort access make this a day-trip destination, but the steep granite basin and narrow shoreline mean limited camping and crowding on weekends.
  • California fishing regulations apply; you need a valid state fishing license and must follow daily catch limits and size restrictions for each species.
  • Fly fishing and spin casting both work; the lake's depth, rocky bottom, and cold water favor subsurface presentations and small to medium lures.

Access and seasons

Convict Lake lies on US Forest Service land managed by the Inyo National Forest. The access road is State Route 395 south from Mammoth Lakes, then east on Convict Lake Road for about 2 miles. The road is paved and maintained year-round, but winter snow can close it for days or weeks. Call the Mammoth Lakes Visitor Center or check the Inyo National Forest website before driving in winter or early spring.

The lake typically opens to fishing in late April, once the Forest Service confirms the road is passable and the ice is gone. The season runs through November 30. Summer access is straightforward — the road is clear and the lake is fully open. Fall fishing (September through November) can be excellent as water cools and trout feed more actively, but snow can arrive suddenly and close the road without warning.

A day-use parking area sits near the resort at the north end of the lake. Parking is free, but the lot fills on weekends and holidays. Arrive early or plan a weekday trip. The Convict Lake Resort operates a marina, restaurant, and cabins; day-use visitors can use the parking area and shoreline access without paying a resort fee.

Fishing methods and what works

Convict Lake responds to both fly and spin tackle. The lake is roughly 150 feet deep at its deepest point, with a rocky bottom and drop-offs near the dam at the south end. The water is cold — even in summer, surface temperature rarely exceeds 60 degrees Fahrenheit — so trout stay active throughout the day and do not shut down in midday heat the way they do in warmer lakes.

Fly anglers do well with small nymphs (size 14 to 18) fished on a sinking line or indicator rig near the bottom, especially in the deeper sections. Dry fly fishing can work in early morning and evening, particularly with small mayfly imitations. The narrow shoreline and steep banks make wading difficult on much of the lake, so many fly anglers fish from the meadow area at the north end or hire a guide with a boat.

Spin anglers catch trout on small spoons (1/8 to 1/4 ounce), spinners, and small crankbaits. Cast along the rocky shoreline and work the lure slowly — the cold water means trout are not aggressive, and a fast retrieve often produces nothing. The dam area at the south end and the rocky points along the east shore hold concentrations of fish. Trolling from a boat is effective if you have access to one; the resort rents boats by the hour or day.

Regulations and licensing

California fishing regulations apply at Convict Lake. You must have a valid California fishing license, available online through the California Department of Fish and Wildlife website or at sporting goods stores in Mammoth Lakes. A one-day license costs less than a full-season license and is useful if you are visiting for a short trip.

Daily catch limits and size restrictions vary by species. Rainbow trout have a daily limit of five fish with a 12-inch minimum size. Brown trout have a daily limit of five fish with a 12-inch minimum size. Brook trout have a daily limit of five fish with no minimum size. These limits are current as of 2024, but regulations can change; check the California Department of Fish and Wildlife website or ask at the resort before you fish.

Barbless hooks are not required at Convict Lake, but catch-and-release fishing is common and encouraged. If you plan to keep fish, bring a cooler with ice and clean them promptly to preserve quality.

When to fish and what to expect

June through August is peak season. Water temperature climbs into the mid-50s Fahrenheit, the road is clear, and the weather is stable. Fishing is consistent, but the lake is crowded — expect other anglers on the shoreline and boats on the water. Weekdays are quieter than weekends. Early morning (first two hours after sunrise) and evening (last two hours before sunset) produce the most active feeding.

September and October offer excellent fishing with fewer people. Water temperature drops into the 40s, which sounds cold but actually triggers more aggressive feeding as trout prepare for winter. The weather is unpredictable — clear mornings can turn to snow by afternoon — so bring layers and check the forecast before you go. The road can close without warning if an early storm moves in.

May and November are shoulder seasons. The lake is open, but water temperature is low (mid-40s), and fishing is slower. Trout are present but less active. These months suit anglers who want solitude and do not mind working harder for fewer fish. The road is usually passable, but conditions change quickly.

Gear and what to bring

Convict Lake sits at 7,583 feet elevation, so weather changes rapidly and temperature swings are large. Bring a warm jacket, hat, and gloves even in summer — morning and evening temperatures can drop into the 40s. Sunscreen and sunglasses are essential; the high elevation means stronger UV exposure, and the water reflects light intensely.

Wading is difficult on most of the shoreline due to steep banks and rocky bottom, so bring sturdy boots with good ankle support if you plan to walk the shore. A small backpack with water, snacks, and a headlamp is useful for longer sessions. If you fly fish, bring a sinking line or indicator setup; the cold water and depth mean most feeding happens below the surface.

The resort has a small shop with basic supplies — flies, spinners, and tackle — but selection is limited. Bring what you know you will use. The nearest full-service fly shop is in Mammoth Lakes, about 20 minutes away by car.

Nearby water and alternatives

Convict Lake is one of several fishable lakes in the Mammoth Lakes basin. Lake Mary, about 5 miles north, is larger and holds similar trout species with less crowding. Mammoth Lake itself is the largest and most developed, with boat rentals and a marina, but it is also the most crowded. Crowley Lake, about 10 miles south, is a reservoir that holds larger trout and is less crowded than Convict Lake.

The Owens River, which flows south from the Mammoth Lakes basin, offers stream fishing for rainbow and brown trout. Access is easier than at the lakes, and the river is less crowded. Regulations differ from the lakes, so check the California Department of Fish and Wildlife website before you fish.

Frequently Asked Questions

Can I fish Convict Lake in winter?

The lake is technically open year-round, but access is unreliable. Heavy snow typically closes Convict Lake Road from December through March. Even when the road is passable, ice forms on the lake and fishing is difficult. Spring (late April onward) is the earliest reliable time to fish.

Do I need a boat to fish Convict Lake?

No. The shoreline is accessible from the parking area and meadow, and you can catch trout from shore with spin or fly tackle. A boat gives you access to deeper water and more area, but it is not required. The resort rents boats if you want to try trolling or fish the deeper sections.

What is the best time of day to fish?

Early morning (sunrise to mid-morning) and evening (late afternoon to sunset) are most productive. Midday fishing is slower but still possible because the water is cold and trout stay active. Overcast days often produce better fishing than clear, sunny days.

How far is Convict Lake from Mammoth Lakes town?

About 20 minutes by car. Take US Route 395 south from Mammoth Lakes and turn east on Convict Lake Road. The drive is scenic and straightforward, making Convict Lake a good day-trip destination if you are staying in Mammoth Lakes.

What size trout should I expect to catch?

Most trout average 10 to 14 inches. Fish in the 15 to 18-inch range are common but not may provide. Larger trout (20 inches and above) are present but less frequent. The lake is stocked regularly, which keeps the population healthy and supports consistent fishing.