Mattagami River

At a glance

Who lives here

• Brown bullhead Ameiurus nebulosusSurveyed · 2013 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Burbot Lota lotaSurveyed · 2013 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Cisco Coregonus artediSurveyed · 2007 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Lake sturgeon Acipenser fulvescensSurveyed · 2013 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Lake whitefish Coregonus clupeaformisSurveyed · 2013 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Longnose sucker Catostomus catostomusSurveyed · 2013 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Northern pike Esox luciusSurveyed · 2021 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Pumpkinseed Lepomis gibbosusSurveyed · 2021 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Rock bass Ambloplites rupestrisSurveyed · 2021 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Smallmouth bass Micropterus dolomieuSurveyed · 2013 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Spottail shiner Hudsonius hudsoniusSurveyed · 2021 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Trout-perch Percopsis omiscomaycusSurveyed · 2021 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Walleye Sander vitreusSurveyed · 2021 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• White sucker Catostomus commersoniiSurveyed · 2021 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Yellow perch Perca flavescensSurveyed · 2021 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
• Emerald shiner Notropis atherinoidesOn the agency's list · Fish species lists: Ontario Ministry of Natural Resources, Aquatic Resource Area polygon segments. Contains information licensed under the Open Government Licence – Ontario
• Longnose dace Rhinichthys cataractaeOn the agency's list · Fish species lists: Ontario Ministry of Natural Resources, Aquatic Resource Area polygon segments. Contains information licensed under the Open Government Licence – Ontario
• Mottled sculpin Cottus bairdiiOn the agency's list · Fish species lists: Ontario Ministry of Natural Resources, Aquatic Resource Area polygon segments. Contains information licensed under the Open Government Licence – Ontario
• Northern redbelly dace Chrosomus eosOn the agency's list · Fish species lists: Ontario Ministry of Natural Resources, Aquatic Resource Area polygon segments. Contains information licensed under the Open Government Licence – Ontario

Not listed doesn't mean no fish.

Getting on the water

No public access site is listed for this water yet.

Listed by public agencies. A listed site doesn't make the water or its shore open to fishing: when in doubt, it's unknown. Check signs and local rules.

The rules

Summary, not the law. Check the official regulations before you fish.

• Lake sturgeonCatch and release only · 0 a day
• Lake whitefishOpen, any size · 25 a day
• Northern pikeOpen, size limits · 6 a day
• PumpkinseedOpen, any size · 50 a day
• Smallmouth bassOpen, any size · 6 a day
• WalleyeOpen, size limits · 4 a day
• Yellow perchOpen, any size · 50 a day

As of October 25, 2026, for a fish of any size.

Official regulations: Ontario Ministry of Natural Resources

Official sources:

• Sport Fishing Variation Order for Fisheries Management Zone 8 (SF-2026/8), Ontario Fishery Regulations, 2007, s. 13(1) (Schedule A, lake sturgeon)

What's biting

Not enough anglers have shared catches here lately. A species shows for a week once at least 5 anglers share catches of it.

From anglers who chose to share their catches in HuntGrid Fishing, each counted once, counts rounded to the nearest 5, published 3 days after the week ends and never changed. Never a spot, time or name.

About this page

Sources and licences:

• Natural Resources Canada, CanVec Hydro Features (1:50,000). Contains information licensed under the Open Government Licence – Canada.; Natural Resources Canada, Canadian Geographical Names Database (CGNDB); Adapted from Statistics Canada, 2021 Census Boundary Files (census divisions, provinces). This does not constitute an endorsement by Statistics Canada of this product. · Open Government Licence – Canada 2.0
• Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario · Open Government Licence – Ontario v1.0 (https://www.ontario.ca/page/open-government-licence-ontario, checked 2026-10-19): "The Information Provider grants you a worldwide, royalty-free, perpetual, non-exclusive licence to use the Information, including for commercial purposes" … "Copy, modify, publish, translate, adapt, distribute or otherwise use the Information in any medium, mode or format for any lawful purpose." data.ontario.ca aquatic-resource-area-survey-point: licence OGL-ON-1.0, access open.
• Fish species lists: Ontario Ministry of Natural Resources, Aquatic Resource Area polygon segments. Contains information licensed under the Open Government Licence – Ontario · Open Government Licence – Ontario v1.0 (https://www.ontario.ca/page/open-government-licence-ontario, checked 2026-10-19): "The Information Provider grants you a worldwide, royalty-free, perpetual, non-exclusive licence to use the Information, including for commercial purposes" … "Copy, modify, publish, translate, adapt, distribute or otherwise use the Information in any medium, mode or format for any lawful purpose." data.ontario.ca aquatic-resource-area-polygon-segment: licence OGL-ON-1.0, access open; the map service: "This data is subject to terms of use. https://www.ontario.ca/page/open-government-licence-ontario".

The outline is drawn from the official water data credited above, without a basemap. These pages show no angler's catches, spots or tracks.