Great Lake · Presque Isle, Ontario, Michigan
Lake Huron
At a glance
- Area
- 5,905,986 ha (14,594,009 acres)
- Mean depth
- 59.8 m (196 ft)
Mean depth: HydroLAKES (Messager et al. 2016)
This lake's year
A ring of the twelve months, January at the top: the outer band is the ice cover, the inner rings the spawning months of the lake's species, and a needle marks the day this page was updated. The list beside it says the same.
- No published ice dates for this lake.
- 1. Lake trout spawns: Sep–Nov (months cited for Great Lakes populations)
- 2. Sea lamprey spawns: Mar–Sep (months cited for Great Lakes populations)
- 3. Cisco spawns: Oct–Jan (months cited for Great Lakes populations)
- 4. Pumpkinseed spawns: May–Aug (months cited for Great Lakes populations)
- 5. Bluntnose minnow spawns: Apr–Sep (months cited for Great Lakes populations)
- Needle: Oct 25, the day this page was updated
Spawning months from each species' cited source for this region, for its five best-recorded species here; ice dates from the published record (sources below). Summer layering and fall turnover are drawn only for lakes the USGS has modelled (in the U.S. Midwest).
Who lives here
- Alewife Alosa pseudoharengusSurveyed · 2025 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- American brook lamprey Lethenteron appendixSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Banded killifish Fundulus diaphanusSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Black bullhead Ameiurus melasSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Black crappie Pomoxis nigromaculatusSurveyed · 2018 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Blackchin shiner Miniellus heterodonSurveyed · 2016 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Blacknose dace Rhinichthys atratulusSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Blacknose shiner Notropis heterolepisSurveyed · 2018 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Bluegill Lepomis macrochirusSurveyed · 2020 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Bluntnose minnow Pimephales notatusSurveyed · 2020 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Brassy minnow Hybognathus hankinsoniSurveyed · 2006 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Brook silverside Labidesthes sicculusSurveyed · 2016 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Brook stickleback Culaea inconstansSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Brook trout Salvelinus fontinalisSurveyed · 2025 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Brown bullhead Ameiurus nebulosusSurveyed · 2020 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Brown trout Salmo truttaSurveyed · 2025 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Central mudminnow Umbra limiSurveyed · 2018 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Channel catfish Ictalurus punctatusSurveyed · 2020 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Chinook salmon Oncorhynchus tshawytschaSurveyed · 2025 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Cisco Coregonus artediSurveyed · 2021 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Common carp Cyprinus carpioSurveyed · 2025 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Common shiner Luxilus cornutusSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Creek chub Semotilus atromaculatusSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Emerald shiner Notropis atherinoidesSurveyed · 2012 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Fantail darter Etheostoma flabellareSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Fathead minnow Pimephales promelasSurveyed · 2018 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Finescale dace Chrosomus neogaeusSurveyed · 2012 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Golden redhorse Moxostoma erythrurumSurveyed · 2009 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Golden shiner Notemigonus crysoleucasSurveyed · 2016 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Greater redhorse Moxostoma valenciennesiSurveyed · 2013 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Green sunfish Lepomis cyanellusSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Hornyhead chub Nocomis biguttatusSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Iowa darter Etheostoma exileSurveyed · 2016 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Johnny darter Etheostoma nigrumSurveyed · 2020 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Lake chub Couesius plumbeusSurveyed · 2012 · 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 · 2004 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Lake trout Salvelinus namaycushSurveyed · 2026 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Largemouth bass Micropterus nigricansSurveyed · 2018 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Logperch Percina caprodesSurveyed · 2018 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Longnose dace Rhinichthys cataractaeSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Longnose gar Lepisosteus osseusSurveyed · 2018 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Mimic shiner Paranotropis volucellusSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Mottled sculpin Cottus bairdiiSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Muskellunge Esox masquinongySurveyed · 2013 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Ninespine stickleback Pungitius pungitiusSurveyed · 2001 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Northern hog sucker Hypentelium nigricansSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Northern pearl dace Margariscus nachtriebiSurveyed · 2000 · 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 · 2020 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Northern redbelly dace Chrosomus eosSurveyed · 2018 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Northern sunfish Lepomis peltastesSurveyed · 2019 · 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
- Rainbow darter Etheostoma caeruleumSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Rainbow smelt Osmerus mordaxSurveyed · 2025 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Rainbow trout Oncorhynchus mykissSurveyed · 2026 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- River chub Nocomis micropogonSurveyed · 2019 · 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 · 2020 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Round goby Neogobius melanostomusSurveyed · 2025 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Sand shiner Miniellus stramineusSurveyed · 2012 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Sea lamprey Petromyzon marinusSurveyed · 2025 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Shorthead redhorse Moxostoma macrolepidotumSurveyed · 2018 · 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 · 2020 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Spotfin shiner Cyprinella spilopteraSurveyed · 2019 · 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 · 2020 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Stonecat Noturus flavusSurveyed · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Walleye Sander vitreusSurveyed · 2024 · 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 · 2019 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Yellow bullhead Ameiurus natalisSurveyed · 2019 · 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 · 2020 · Fish surveys: Ontario Ministry of Natural Resources, Aquatic Resource Area survey points. Contains information licensed under the Open Government Licence – Ontario
- Atlantic salmon Salmo salarStocked · 2026 · Fish stocking: Michigan Department of Natural Resources (Fish Stocking Database)
- Coho salmon Oncorhynchus kisutchStocked · 2026 · Fish stocking: Michigan Department of Natural Resources (Fish Stocking Database)
- Lake whitefish Coregonus clupeaformisStocked · 2025 · Fish stocking: Michigan Department of Natural Resources (Fish Stocking Database)
- Splake Salvelinus fontinalis × Salvelinus namaycushStocked · 2026 · Fish stocking: Michigan Department of Natural Resources (Fish Stocking Database)
- Bloater Coregonus hoyiOn 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
- Burbot Lota lotaOn 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
- Freshwater drum Aplodinotus grunniensOn 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 sucker Catostomus catostomusOn 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
- Pink salmon Oncorhynchus gorbuschaOn 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
- Round whitefish Prosopium cylindraceumOn 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
- Sauger Sander canadensisOn 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
- White bass Morone chrysopsOn 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
- White perch Morone americanaOn the agency's list · 2025 · Fish species lists: Ontario Ministry of Natural Resources, Aquatic Resource Area polygon segments. Contains information licensed under the Open Government Licence – Ontario
- Flathead catfish Pylodictis olivarisReported · 2024 · Nonindigenous species occurrences: U.S. Geological Survey, Nonindigenous Aquatic Species database, via GBIF (CC0 1.0)
- Freshwater tubenose goby Proterorhinus semilunarisReported · 2025 · Nonindigenous species occurrences: U.S. Geological Survey, Nonindigenous Aquatic Species database, via GBIF (CC0 1.0)
- Gizzard shad Dorosoma cepedianumReported · 2025 · Nonindigenous species occurrences: U.S. Geological Survey, Nonindigenous Aquatic Species database, via GBIF (CC0 1.0)
- Goldfish Carassius auratusReported · 2023 · Nonindigenous species occurrences: U.S. Geological Survey, Nonindigenous Aquatic Species database, via GBIF (CC0 1.0)
- Threespine stickleback Gasterosteus aculeatusReported · 2025 · Nonindigenous species occurrences: U.S. Geological Survey, Nonindigenous Aquatic Species database, via GBIF (CC0 1.0)
Not listed doesn't mean no fish.
Stocking
| Year | Species | Stage | Number |
|---|---|---|---|
| Jun 17, 2026 | Lake trout | 49 | |
| Jun 17, 2026 | Lake trout | 49 | |
| Jun 17, 2026 | Lake trout | 483 | |
| Jun 14, 2026 | Lake trout | 35,736 | |
| Jun 14, 2026 | Lake trout | 35,683 | |
| Jun 14, 2026 | Lake trout | 35,741 | |
| Jun 13, 2026 | Lake trout | 38,836 | |
| Jun 13, 2026 | Lake trout | 38,822 | |
| Jun 13, 2026 | Lake trout | 35,234 | |
| Jun 11, 2026 | Lake trout | 38,745 | |
| Jun 11, 2026 | Lake trout | 38,740 | |
| Jun 6, 2026 | Lake trout | 35,815 | |
| Jun 6, 2026 | Lake trout | 35,646 | |
| Jun 6, 2026 | Lake trout | 35,659 | |
| May 7, 2026 | Rainbow trout | 31,360 | |
| May 7, 2026 | Rainbow trout | 43,210 | |
| May 4, 2026 | Splake | 20,500 | |
| May 4, 2026 | Splake | 9,995 | |
| Apr 30, 2026 | Rainbow trout | 40,503 | |
| Apr 16, 2026 | Coho salmon | 42,654 |
As the agency publishes it. Newest first: 20 of 382.
Getting on the water
- Public/emergency AccessBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Public AccessBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Public AccessBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Public AccessBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Baie Du DoreBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Boat launchContains information licensed under the Open Government Licence – Ontario
- Public AccessBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Wasaga Beach Provincial ParkBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Georgian Bay - Snug HarbourBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Parry Sound - George Hunt Memorial Boat RampBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Georgian Bay - Woods BayBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Georgian Bay - Pengally BayBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Georgian Bay - Killbear Provincial ParkBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Parry Sound - Salt Dock RoadBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Blind BayBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Pater Mine Boat LaunchBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Beharriell Park Boat LaunchBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Pointe au BarilBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Parry Sound - Sawdust BayBoat launch · Contains information licensed under the Open Government Licence – Ontario
- Parry Sound - Waubuno BeachBoat launch · Contains information licensed under the Open Government Licence – Ontario
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.
- Black crappieOpen, any size · 30 a day
- BluegillOpen, any size · 50 a day
- Brook troutClosed · 5 a day
- Brown troutOpen, any size · 5 a day
- Channel catfishOpen, any size · 12 a day
- Chinook salmonOpen, any size · 5 a day
- Green sunfishOpen, any size · 50 a day
- Lake sturgeonClosed
- Lake troutClosed · 1 a day
- Largemouth bassOpen, any size · 6 a day
- MuskellungeOpen, size limits · 1 a day
- Northern pikeOpen, any size · 4 a day
- Northern sunfishOpen, any size · 50 a day
- PumpkinseedOpen, any size · 50 a day
- Rainbow troutOpen, any size · 5 a day
- Smallmouth bassOpen, any size · 6 a day
- WalleyeClosed · 6 a day
- Yellow perchOpen, any size · 50 a day
- Atlantic salmonOpen, any size · 1 a day
- Coho salmonOpen, any size · 5 a day
- Lake whitefishOpen, any size · 12 a day
- SplakeClosed · 5 a day
- Pink salmonOpen, any size · 5 a day
- SaugerOpen, any size · 6 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 13 (SF-2019/13), Ontario Fishery Regulations, 2007, s. 13(1) (Schedule A, black and white crappie)
- Ontario Fishery Regulations, 2007 (SOR/2007-237) (s. 18(a))
- Sport Fishing Variation Order for Fisheries Management Zone 14 (SF-2021/14), Ontario Fishery Regulations, 2007, s. 13(1) (Schedule B, Georgian Bay, Killbear Channel, lake trout (close time all year))
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:
- U.S. Geological Survey, National Hydrography Dataset Plus High Resolution (NHDPlus HR); U.S. Census Bureau, TIGER/Line® Shapefiles 2025: counties and states · Public domain (U.S. Government work, 17 U.S.C. §105)
- Lake mean depth: HydroLAKES (Messager et al. 2016, Nature Communications 7:13603), CC BY 4.0 · CC BY 4.0
- Fish stocking: Michigan Department of Natural Resources (Fish Stocking Database) · State of Michigan open data terms (https://www.arcgis.com/home/item.html?id=fc7739be5f5247e7bf7f2c6bc9471140, read 2026-10-19): "This dataset is a public record and, as more fully described below, there are no restrictions on the use, reproduction, or distribution of this dataset." The terms also carry a release of claims and an unlimited indemnity, accepted under the owner's 2026-10-19 rule. Credit the agency; remove the layer if the agency asks.
- Fish stocking: Ontario Ministry of Natural Resources. 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 2026-10-16): "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 record fish-stocking and its ArcGIS item: licence OGL-ON-1.0.
- 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.
- Nonindigenous species occurrences: U.S. Geological Survey, Nonindigenous Aquatic Species database, via GBIF (CC0 1.0) · CC0 1.0 Universal (https://creativecommons.org/publicdomain/zero/1.0/, checked 2026-10-18): the USGS Nonindigenous Aquatic Species database is published through GBIF as "no copyright" — "The person who associated a work with this deed has dedicated the work to the public domain by waiving all of his or her rights to the work worldwide under copyright law". GBIF dataset d6cc311c-c5ab-4f23-9a20-10514f9eb9c4, licence CC0_1_0; cite U.S. Geological Survey, Nonindigenous Aquatic Species Database.
- 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".
- Contains information licensed under the Open Government Licence – Ontario · Open Government Licence – Ontario 1.0
- NOAA National Centers for Environmental Information (Great Lakes bathymetry) · Public domain (U.S. Government work, 17 U.S.C. §105; NCEI: "not subject to copyright protection"; data.gov: CC0 1.0)
Spawning months:
- Lake trout: Marcus, M.D., W.A. Hubert and S.H. Anderson. 1984. Habitat suitability index models: Lake trout (exclusive of the Great Lakes). U.S. Fish Wildl. Serv. FWS/OBS-82/10.84 (habitat use information: temperature that cues spawning (varies by lake)); p. 3 (spawning months: Great Lakes, New York, New Hampshire, Maine; mid-August to mid-September in Great Bear and Great Slave lakes)
- Sea lamprey: Goodyear, C.D., T.A. Edsall, D.M. Ormsby Dempsey, G.D. Moss, and P.E. Polanski. 1982. Atlas of the spawning and nursery areas of Great Lakes fishes, Volume XIII: Reproductive characteristics of Great Lakes fishes. U.S. Fish Wildl. Serv. FWS/OBS-82/52, p. 2 (Great Lakes populations: spawning March-September, usually May-July, at 50-82 °F; peak in late May-early June at 58-60 °F)
- Cisco: Goodyear, C.D., T.A. Edsall, D.M. Ormsby Dempsey, G.D. Moss, and P.E. Polanski. 1982. Atlas of the spawning and nursery areas of Great Lakes fishes, Volume XIII: Reproductive characteristics of Great Lakes fishes. U.S. Fish Wildl. Serv. FWS/OBS-82/52, p. 13 (Great Lakes populations: spawning late October to early January, usually two weeks in late November-early December, as the water cools from 41 to 36 °F)
- Pumpkinseed: Goodyear, C.D., T.A. Edsall, D.M. Ormsby Dempsey, G.D. Moss, and P.E. Polanski. 1982. Atlas of the spawning and nursery areas of Great Lakes fishes, Volume XIII: Reproductive characteristics of Great Lakes fishes. U.S. Fish Wildl. Serv. FWS/OBS-82/52, p. 115 (Great Lakes populations: spawning May-August)
- Bluntnose minnow: Goodyear, C.D., T.A. Edsall, D.M. Ormsby Dempsey, G.D. Moss, and P.E. Polanski. 1982. Atlas of the spawning and nursery areas of Great Lakes fishes, Volume XIII: Reproductive characteristics of Great Lakes fishes. U.S. Fish Wildl. Serv. FWS/OBS-82/52, p. 70 (Great Lakes populations: spawning April-September at 65-82 °F, usually May-July)
The outline is drawn from the official water data credited above, without a basemap. These pages show no angler's catches, spots or tracks.