troutmaps
A trout holds in clear water as sunlight traces ripples across the riverbed.
The Ontario River AtlasFor the days out there

Follow the water.

A field atlas for the water you know,
and the stretch you haven’t found yet.

Find your water
Photograph by Jon Sailer / Unsplash

A little knowledge.

A whole lot of water.

Detailed river guides
10
Documented trout reaches
5,582
Rivers with live readings
3

Worth a closer look.

A speckled fish with an orange gill patch swims through dark water.
A brook trout with red and yellow spots swims above dark stream stones.
A fish swims above flat stones in shallow water, seen from above.
A rocky creek rushes through the boreal forest in Northern Ontario.
Seen from behind, an angler casts a loop of fly line over a dark river.
An angler holds a spotted brown trout just above rippling water.
White water runs between large river rocks and evergreen branches.
A distant fly angler stands in a calm river beneath a wooded bank.
A rainbow trout with a pink side stripe swims above rounded stream stones.
02 / FOLLOW A RIVER

Every river has
its own way.

Three places to start. Trace a river’s course, then take a closer look in the atlas.

Explore all waters
THE SHAPE OF THE RIVER
Credit River river pathA drawing of the river’s course, with north at the top. Open the atlas for the geographic map and access locations.
A RIVER, AT A GLANCESEE IT ON THE MAP ↗
Lake Ontario / Ontario

Credit River

Mississauga/Brampton

GUIDE REFERENCE

43.5890° N / 79.6441° W

03 LOCATIONS IN THE GUIDE

Streetsville / Erindale Park / Port Credit

Open in the atlas

Inside the atlas

Before you go.

See what’s included free

  1. Choose a stretch.

    Follow the provincial trout records across Ontario, or start with a detailed river guide.

  2. Check the gauge.

    Credit, Humber and Ganaraska show observed river flow, water levels and nearby air temperature when readings are available.

  3. Plan a way in.

    Look for verified access destinations with directions and links to the local authority.

03 / From the riverbank

Leave it
worth finding.

The best part of a good map is where it takes you. Look after the water when you get there.

Know your way in.

Use the access records to plan. Confirm parking, permission, and local signs before you go.

The next good day is out there.

Make time
for the river.

Open the atlas
An angler supports a brown trout above a net at the surface of a river.
Giant Asparagus / Pexels