Troutline

Jemez River

New Mexico·Jemez Mountains·35.77° N, 106.69° W
Flow
17.1 CFS
Jemez River near Jemez
Water Temp
—
Condition
Below Normal
Weather
68°F
Isolated Showers And Thunderstorms
near Jemez Springs

Insights

Wind
Wind 0 mph — calm
Easy casting and clean surface presentations.
Flow
Low flows at 17.1 CFS
Fish are spooky. Lighten tippet and lengthen leaders.
Snowpack
Snowpack snowpack update
Snowpack data for Jemez River basin is limited right now. The May–July runoff forecast for Jemez R nr Jemez is 26% of average.

The Jemez isn't really one river — it's a small, tangled watershed of freestone trout streams draining the south side of the Valles Caldera, an hour northwest of Albuquerque and about the same west of Santa Fe. NM Highway 4 follows the water nearly the whole way, so most of it fishes right from the road, and the fish know it: the wild browns here run small — 8 to 12 inches is a good one — and they spook at a shadow. What the Jemez gives up in size it makes up in variety. In a single day you can nymph the deep tuff-walled pools of the mainstem below Jemez Springs, hike into a box canyon on the Rio Guadalupe, and drift a hopper across a caldera meadow on the upper East Fork, all inside a 25-mile stretch of one highway.

The mainstem forms at Battleship Rock, where the East Fork and the Rio San Antonio meet, then cuts south past Soda Dam and Jemez Springs through red-rock canyon before the trout water peters out near Highway 485. It's a wade fishery — no floating anywhere in the drainage — 15 to 30 feet wide, mostly ankle-to-knee deep with pools that reach five feet. New Mexico Game and Fish stocks catchable rainbows near the campgrounds and Highway 4 bridges, but the real draw is the wild brown population and, in the coldest headwater tributaries, the occasional Rio Grande cutthroat. The upper reaches inside and just below Valles Caldera National Preserve hold the best water and the most solitude; the tradeoff is a day-use permit lottery on the Preserve and a lot of steep, brushy canyon walking to reach the rest.

Timing matters more here than which section you pick. Spring runoff, roughly April into early June, blows the mainstem out and muddies it — but that same window lights up the Rio Guadalupe's giant stonefly hatch, the one genuinely famous event in the drainage. Summer is prime for the small stuff if you fish dawn and the evening rise and get off the water once afternoon temperatures push past 70°F; these low-elevation reaches warm fast and the fish stress. Fall is the prettiest season and the browns turn aggressive ahead of the spawn. Winter is a real option on the lower mainstem, which rarely freezes and gives up midge-driven dry action on warm afternoons. Manage your expectations on fish size, respect the private inholdings scattered between public stretches, and the Jemez is a genuinely fun mountain fishery that sees little fly pressure.

Species

  • Brown Trout
    Primary · Sep-Nov · 8-12"

    The backbone of the fishery — wild, streambred, brilliantly colored, and very spooky. Most run 8 to 12 inches, but the deep Battleship Rock pools and the Guadalupe Box hold fish to 20 inches. Fall pre-spawn is the prime window, when the browns turn aggressive and streamers move the bigger ones.

  • Rainbow Trout
    Common · Jun-Aug · 8-12"

    NMDGF stocks catchable rainbows near the campgrounds and Highway 4 bridges on the mainstem and East Fork. Some holdover and carry over into the cooler canyon water. (New Mexico has no stocking-schedule feed in Troutline, so no plant calendar shows here.)

  • Rio Grande Cutthroat Trout
    Present · Jun-Sep · 6-10"

    New Mexico's state fish and a conservation-priority native, sparse and holding only in the highest, coldest headwater tributaries. A genuine treat when one comes to hand — handle gently and release.

Ideal wading flow10–40 CFS
Blow-out>100 CFS
Ideal water temp52–64°F

Fall (September–November) is the best all-around window — aggressive pre-spawn browns, cool water, few people, and the year's best color. Early summer (June) offers post-runoff clarity plus the tail of the Guadalupe salmonfly hatch. Winter fishes on the lower mainstem, which rarely freezes, on midge dries during warm afternoons. Spring (April–May) is runoff-dependent: great on the Guadalupe during the stonefly hatch, blown out elsewhere. Deep summer is fishable only at dawn and dusk before the low-elevation water warms past 70°F.

Sections

5 sections on this river

Rio San Antonio — Meadows to Battleship Rock

WadeBrown Trout · Rainbow Trout

Snakes through grassy caldera-edge meadows up high — pools and deep runs holding spooky wild brown trout and rainbow trout — then below La Cueva drops into several miles of raging pocket water in the canyon. The upper two miles below the Preserve boundary is the 'Green Chile Water,' a trophy-management reach limited to two trout on a single barbless artificial. Up top it is technical stalking to nervous meadow fish; down low it is pocket-water nymphing. Access via FR 376 for the meadow reach and canyon pullouts at Indian Head, Hot Springs, and Deep Canyon off NM 4.

Best for: Wild brown trout and rainbow trout; stalking and short casts in the upper meadows, pocket-water nymphing below. The restrictive 'Green Chile Water' reach is the drainage's trophy management stretch.

East Fork Jemez — Valle Grande (Valles Caldera Headwaters)

WadeCutthroat · Brown Trout · Rainbow Trout · Shad

A tiny caldera meadow stream, so small you can jump across it in places, winding through the Valle Grande grassland inside Valles Caldera National Preserve before it drops into the forest. Sight-fishing to small, nervous wild brown trout and the occasional Rio Grande cutthroat trout on short casts and small dries. This is stalking water — one iconic Western caldera, exposed meadow casting, and fish that vanish at a bad shadow.

Best for: Wild brown trout and Rio Grande cutthroat trout on small dries and hoppers; high-meadow sight-fishing. Requires a Preserve day-use permit (reservation lottery), dawn to dusk only.

East Fork Jemez — Las Conchas to Battleship Rock (Canyon)

WadeBrown Trout · Rainbow Trout

The wilder, less-pressured half of the East Fork, transitioning from pocket water at the Las Conchas Trailhead into a rugged canyon of volcanic tuff and basalt with deep pools at the bottom. The East Fork Trail follows the water; expect scrambling and hiking beyond the trailheads, and respect the private property mid-canyon. The deep pools at the Battleship Rock confluence hold some of the biggest wild brown trout in the whole system. Fish nymphs, small streamers, and hopper-dropper rigs through the pockets.

Best for: Wild brown trout on nymphs, small streamers, and hopper-droppers; the deep Battleship Rock pools hold the system's largest fish. Wilder, less-crowded water than the mainstem.

Jemez River — Jemez Springs to Highway 485 (Mainstem)

WadeBrown Trout · Rainbow Trout

The most road-accessible trout water in the drainage — a freestone canyon river 15 to 30 feet wide carving through volcanic tuff and red rock below Soda Dam and Jemez Springs. Deep runs and pools to five feet, scattered cottonwoods and willows, and NM 4 running right alongside. Wild brown trout hold in the deeper pools and stocked rainbow trout fill in near the campgrounds and highway bridges. Nymph the pools, swing a small streamer through the runs, and watch for private inholdings between the public stretches.

Best for: Wild brown trout and stocked rainbow trout on nymphs and small streamers; a reliable winter fishery on midge dries since the lower mainstem rarely freezes.

Rio Guadalupe — Guadalupe Box

WadeSalmon · Brown Trout · Rainbow Trout

The biggest water in the drainage — 15 to 30 feet wide, fast, and boulder-strewn, running through the steep-walled Guadalupe Box with deep pockets and runs. Fed by the Rio Cebolla and Rio de las Vacas, it holds the system's best shot at size: wild brown trout of 10 to 14 inches are typical, with reports to 20. This is the home of the drainage's signature giant stonefly (salmonfly) hatch, roughly the last week of April into the second week of June. NM 485 and FR 376 parallel the lower canyon; the upper box between FR 626 and Porter is limited-access solitude. Dry-fly and deep pocket-water nymphing.

Best for: Wild brown trout on dry flies and deep nymphs in the pocket water; the giant salmonfly hatch in late spring is the signature event of the whole Jemez drainage.

Regulations

Current fishing rules and restrictions

All five principal Jemez waters — the Jemez mainstem, East Fork, Rio San Antonio, Rio Guadalupe, and the connected Rio Cebolla and Rio de las Vacas — carry New Mexico's Special Trout Water designation. The Rio San Antonio's 'Green Chile Water' reach is a reduced-limit, single-barbless artificial-only stretch, and the Valles Caldera headwaters require a Preserve day-use permit. Verify exact stretch boundaries against the current-year proclamation before you go.

  • Valid New Mexico fishing license plus a Habitat Management & Access Validation required for all anglers 12 and older
  • General statewide trout limit where not otherwise posted: 5 trout per day (brown, brook, rainbow, lake trout, and Kokanee combined), 10 in possession
  • Rio San Antonio 'Green Chile Water' — from the San Antonio Hot Springs pedestrian bridge upstream 2.0 miles to the Valles Caldera National Preserve boundary: 2-trout limit, artificial fly or lure with a single barbless hook only
  • All principal Jemez waters are signed Special Trout Water — read the posted rules on the ground and confirm current stretch boundaries in the proclamation
  • Valles Caldera National Preserve reaches (upper East Fork, San Antonio headwaters) are day-use only under a separate NPS/Preserve permit and reservation lottery, dawn to dusk

Special Trout Water boundaries and limits shift between proclamation years — reverify the current-year NMDGF Regulations for Specific Waters before publishing hard stretch limits. Private inholdings are interspersed with public water on the mainstem and East Fork; respect posted boundaries.

Source: New Mexico Department of Game & Fish. Regulations change annually — verify before fishing.

Access & Logistics

Getting there, fly shops, and lodging

Getting There

Jemez Springs, NM

1 hr from Albuquerque via US 550 / NM 4, 1 hr from Santa Fe via Los Alamos, 40 min from Los Alamos

Fly Shops

Camping & Lodging

Multiple Santa Fe National Forest campgrounds line NM 4 — Battleship Rock (day use), East Fork, San Antonio, Jemez Falls, and Redondo. Jemez Springs has inns and cabins on the river. Valles Caldera is day-use only, no camping. Full services in Los Alamos, Santa Fe, and Albuquerque.

Most water is roadside off NM 4, FR 376, and NM 485, but private inholdings break up the public stretches on the mainstem and East Fork — respect posted boundaries. The Valles Caldera reaches require a permit and reservation (day-use, dawn-to-dusk only). No fees on the Forest Service reaches beyond a standard New Mexico license plus Habitat validation.

Conditions data is live from public monitoring networks. Regulations change annually — always verify current rules with your state fish & wildlife agency before fishing.

More in New Mexico

View all 10 rivers

Other regions

Cimarron RiverNM

A small, cold canyon tailwater below Eagle Nest Lake that fishes like a mountain freestone — granite-walled pocket water along US-64 through Cimarron Canyon State Park, packed with wild brown trout (roughly 4,000 per mile) that reward a short cast and a stealthy approach over distance.

Costilla CreekNM

A small high-meadow tailwater in the Valle Vidal north of Taos holding one of the last stronghold populations of pure Rio Grande cutthroat — willing 8-to-12-inch natives on dry-dropper and hoppers, wade-only, and closed until July 1 to protect the spring spawn.

Gila RiverNM

New Mexico's wildest trout water — small, tumbling freestone forks in the Gila Wilderness holding native Gila trout, the copper-and-gold rarity you fish for under a free state permit after a long dirt road and a longer walk. Fish run small and the season is short; late September through November is the window.

Pecos RiverNM

The trout stream most New Mexicans learned to fly fish on — a small, cold, wadeable snowmelt freestone that drops out of the Pecos Wilderness along NM 63 past Terrero and Cowles. Roadside stocked rainbows and wild stream-bred browns down low, a legendary late-June salmonfly hatch through the canyon, and native Rio Grande cutthroat in the walk-in wilderness headwaters.

Red RiverNM

An Enchanted Circle trout stream that fishes as two rivers under one name — a heavily stocked, roadside rainbow run through the ski town up top, and a wild, spring-fed brown-trout canyon down low that stays cold and open through winter as it drops into the Rio Grande gorge below Questa.

Rio ChamaNM

New Mexico's second-string tailwater and the one that quietly gives up the biggest brown trout in the state. The cold bottom-release water below El Vado Dam grows browns past 20 inches and fishes like a technical tailwater; downstream, a volcanic gorge and a Wild & Scenic canyon float add freestone pocket water and multi-day raft trips.