Nicola River

River
187 km
Main stem
12
Species recorded
On the first of October the Nicola below the lake opens again after seven months shut. The hills along Highway 8 are bunchgrass and ponderosa pine gone dry and pale, the irrigation ditches are drawing less, and coho are moving up the system toward the gravel. For five months this is a trout river through dry country, with a pullout every few bends.
The shape is simple once you see it. The river rises on the plateau to the east, runs through Douglas Lake, and winds through ranch country into the top of Nicola Lake. It leaves the lake over a dam at the south end, runs through Merritt, where the Coldwater joins as its one big tributary, and then turns west for the long run down a narrowing valley to the Thompson at Spences Bridge. The lake splits it into two rivers with two seasons: above it, open from July to the end of the year; below it, open from October through February. That gives three parts to find: the upper river, the town water, and the lower river along Highway 8.
The lower river is the one to start with. From Merritt to Spences Bridge the highway follows it most of the way, and the 2021 flood that tore out long stretches of road also moved the river, so many of the runs and pools are newer than any map. Rainbow trout and mountain whitefish hold in the deeper water, bull trout move through, and the Thompson’s steelhead use it to spawn. Much of the bank is reserve land; ask before you cross.
The town water, from the dam to where the Coldwater comes in, is small and close: an hour after work for anyone staying in Merritt, and a good place to learn how the river reads before you drive the valley.
The upper river, between Douglas Lake and Nicola Lake, is the least known and the hardest to reach. It runs through cattle ranch and Upper Nicola Band land, so the public way in is mostly where roads cross it. It opens on 1 July, which makes it the only part of the Nicola you can fish in July, August or September.
Below Spences Bridge the Nicola is gone into the Thompson, and the big river is the next water down.

Fish in this water

Each fish is rated by its strongest evidence. A rating says how sure we are a fish is here, not how many there are, whether it is worth fishing for or whether you may keep it.

Confirmed

Recorded on this water in the last 15 years, or named for it by a fishery agency, its fishing rules or a fishing publication.
No live gauge
No gauge readings are available for this water.
Season
Driving directions

Water and habitat

Below the lake the dam sets the flow, releasing stored water through the dry months to keep the river alive for coho. Through Merritt the river is a modest, cobbled stream. Below town it picks up the Coldwater and a scatter of side creeks and grows into a run-and-pool river with riprap where the highway crowds it. Trout hold where depth and current meet, in the slots below riffles and along the deep edge of the rock banks, where the current brings food past without making them work for it. Smaller fish spread through the shallows; better fish sit in the deeper runs. In a dry year, the low water in this valley can get hot enough to kill fish.

Fish and forage

Resident rainbow trout and mountain whitefish are the fish you’ll meet most. Bull trout are present and must be released. The steelhead are a threatened run: don’t target them, and release any you hook. Chinook and coho spawn here too. In October and November, trout below spawning salmon pick up loose eggs, a pattern that holds on salmon rivers across the region. Stoneflies live in the cobble, and a rubber-legged stone pattern dead-drifted in deeper water has produced fish here.

When to fish it

October is the best of the lower river, with the water cooling off and trout feeding hard behind the spawning salmon. November and December are shorter, colder days on the same water, still worth a drive from Merritt. In January and February the river below the lake stays open for catch and release, and whitefish schooled up in the riffles are often the likeliest takes. The upper river above Nicola Lake fishes from July through December. In July and August fish it early in the day: once stream water passes about 20 °C, released trout die at a higher rate, and on the hottest afternoons the kind thing is to leave it.

How to fish it

Fish one fly at a time. Start with a weighted stonefly nymph, dead-drifted deep through the head and throat of a run; mend so the fly sinks before it reaches the slot, and stand below and to the side rather than wading into the soft water where fish sit. If the small fish keep finding it, go deeper and heavier, or move to the next bigger run. Where salmon are spawning, change to a single egg pattern drifted along the tail-outs below the redds, and keep your feet off the gravel. On cold January and February days below the lake, a small nymph slowed right down along the bottom of a riffle finds whitefish. If a run gives you nothing in a dozen drifts, walk on: the next pullout is never far.

Access and safety

Highway 8 follows the lower river from Merritt to Spences Bridge, fully two lanes again since late 2025, with pullouts onto the water along much of it. The road and river were rebuilt after 2021, and the riprap banks are steep and loose; pick your way down. The Lower Nicola, Nooaitch, Shackan and Cook’s Ferry bands have reserves along the river, and the upper river crosses ranch and Upper Nicola Band land. Don’t cross reserve or private land without permission. In Merritt, the river is reachable from town streets and parks. Cold snaps put shelf ice along the edges; wade carefully, and never stand on it.

Regulations

The Nicola is in Region 3 and is fished with a single barbless hook. Upstream of Nicola Lake there’s no fishing from 1 January to 30 June. Downstream of the lake there’s no fishing from 1 March to 30 September, and trout are catch and release from 1 January to 28 February. From October through December below the lake you may keep trout of 25 cm or more, five trout or char a day with no more than four from streams and only one over 50 cm; release all bull trout and all steelhead; possession is two daily quotas. Bull trout are catch and release on the whole river. A Steelhead Conservation Surcharge Stamp is required to fish for steelhead anywhere in BC. The river has been closed in drought years and steelhead closures can change in season, so check the regulations and in-season notices before you go. Nicola Lake sits in the middle of the river, and the Coldwater joins at Merritt.
Page reviewed 2026-11-01