Southern Vermont / Windsor County

Amherst Lake

Amherst Lake is the uppermost of the Black River chain of lakes along Route 100 in Plymouth, a deep, narrow lake stocked with trophy rainbow trout and holding brown trout in cold, clear water.

Overview

Amherst Lake heads the Black River chain of lakes — Amherst, Echo, and Rescue — strung along the Route 100 valley south of Plymouth. The lake covers 83 acres in a narrow, steep-sided trough, and its cold depths support both the 200 two-year-old trophy rainbows stocked for 2026 and a population of brown trout, with lake trout and smallmouth reported in the deeper water. The Black River flows in at the north end and out to Echo Lake at the south.

Fly fishing centers on the two river mouths and the shelf edges. Spring sends trout to the inlet for washed-down food, and the current seam holds fish well into June. Chironomid fishing over the drop-offs is dependable, and trolling a streamer along the west-shore contour picks up browns that rarely show themselves otherwise. The lake's small size makes it a comfortable canoe fishery despite its depth.

Depth & Character

Surface Area
83acres
Max Depth
90ft
Elevation
1070ft
Amherst Lake depth chart (bathymetric map)

Bathymetric depth chart — click to open the full PDF. Source: Vermont DEC.

Download Depth Chart (PDF)

Source: Vermont DEC

Water Characteristics

A narrow, deep trough of cold, clear water fed by the Black River, with steep contours dropping quickly from the shoreline. The thermocline sets up deep, leaving trout reachable along the edges most of the season.

Stocking

SpeciesSizeNumberProgram
Rainbow Trout2-year-old200Trophy Trout Program (2026)

Access & Boats

A Vermont Fish and Wildlife boat launch off Route 100 serves the lake; the highway runs the length of the western shore, and the Black River inlet at the north end is a short paddle from the launch.

Ice Fishing

Fished through the ice for trout and perch in winter.

Fishing Pressure & Local Tips

Light to moderate. Route 100 traffic passes within yards, but few travelers stop; the trophy program draws a modest local following.

Local Knowledge

Fish the Black River inlet seam in May with an Egg-Sucking Leech — trophy rainbows hold in the current tongue like river fish, and the take is unmistakable.

Species Present

Rainbow Trout

Rainbow Trout

The rainbow trout is Montana's most widespread and popular gamefish, celebrated for its explosive surface strikes, aerial acrobatics, and willingness to take a well-presented dry fly. Native to Pacific Coast drainages from Alaska to Mexico, rainbows were first introduced to Montana's waters in the late 1800s and have since established thriving populations in nearly every major river system in the state. On legendary waters like the Madison, Missouri, and Bighorn, wild rainbow trout grow fat on prolific insect hatches and provide some of the finest dry-fly fishing in North America. Rainbow trout in Montana display remarkable variation depending on their home water. Fish in nutrient-rich tailwaters like the Missouri River below Holter Dam can exceed 20 inches with regularity, their deep bodies and broad tails reflecting the abundant food supply. Freestone river rainbows, such as those in the upper Madison and Gallatin, tend to be leaner and more athletic, shaped by faster currents and colder water temperatures. In many Montana rivers, rainbows spawn in the spring from March through June, and anglers should be mindful of spawning redds during this period to protect future generations of fish. Rainbows are arguably the most versatile trout species for fly anglers. They respond well to dry flies during hatches, aggressively chase streamers, and feed heavily on nymphs subsurface throughout the year. Their fighting ability is legendary: a hooked rainbow will often launch itself completely out of the water multiple times during a battle. Montana's catch-and-release regulations on many blue-ribbon streams have produced exceptional rainbow trout fisheries with high densities of large, healthy fish that continue to draw anglers from around the world.

Brown Trout

Brown Trout

The brown trout is the most cunning and elusive trout species swimming in Montana's rivers, and it rewards patient, skilled anglers with some of the state's most memorable catches. Originally native to Europe and western Asia, brown trout were first introduced to North American waters in 1883 and arrived in Montana shortly thereafter. They have since established robust, self-sustaining populations in virtually every major trout stream in the state, from the legendary spring creeks of the Paradise Valley to the sweeping runs of the lower Madison and the deep pools of the Bighorn. Brown trout grow larger than any other trout species in Montana, and fish exceeding 24 inches are caught with regularity on premium waters. The lower Madison River, the Missouri River below Holter Dam, and the Bighorn River are particularly renowned for producing trophy-class browns. Unlike rainbows, brown trout spawn in the fall (October through November), and their aggressive pre-spawn behavior creates an exciting window for streamer fishing as large males become territorial and attack anything that enters their domain. Browns are notably more nocturnal than other trout species, and many of the biggest fish are caught during low-light conditions. What sets brown trout apart from other species is their wariness and selectivity. Large browns are notoriously difficult to fool, often refusing flies that are even slightly off in size, color, or presentation. They tend to establish and defend prime feeding lies (undercut banks, logjams, deep pools, and boulder gardens), and an angler who learns to read water and identify these holding spots will consistently catch more and larger fish. This combination of difficulty, size potential, and intelligence makes the brown trout the most prized quarry for many serious Montana fly fishers.

Food Sources & Hatches

InsectSuggested FlyJanFebMarAprMayJunJulAugSepOctNovDec
Chironomids (midges)
morning
Chironomid (Bomber)
Callibaetis Mayflies
afternoon
Parachute Adams
Leeches
all day
Egg Sucking Leech

Chironomids (midges): Emergences along the shelf edges bring trophy rainbows within indicator range.

Callibaetis Mayflies: Light hatches over the inlet flats at the north end.

Leeches: Egg-Sucking Leech in the Black River inlet seam is the local confidence pattern.

Recommended Flies

Access Points & Boat Launches

Amherst Lake Boat Launch

Boat LaunchEasy

Vermont Fish and Wildlife launch off Route 100 on the western shore. The Black River inlet at the north end and the steep west-shore contour are both short paddles from the ramp.

Boat launch · ParkingParking: 6-8 vehiclesFreeNone
Map

Regulations

Regulations

Designated trophy trout water: 2-fish daily limit on trout with no length minimum. General season runs from the second Saturday in April through October 31. Vermont fishing license required. Verify current rules at vtfishandwildlife.com.

Always verify current regulations with Vermont Fish & Wildlife Department before fishing.