Lake · York, Ontario

Thompson Lake

At a glance

Area: 5 ha (13 acres)

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. Blacknose shiner spawns: May–Aug (months cited for Great Lakes populations)
2. Bluntnose minnow spawns: Apr–Sep (months cited for Great Lakes populations)
3. Brook stickleback spawns: Apr–Jul (months cited for Great Lakes populations)
4. Brown bullhead spawns: Apr–Aug (months cited for Great Lakes populations)
5. Creek chub spawns: Apr–Jul (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

American brook lamprey Lethenteron appendixOn 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
Blacknose dace Rhinichthys atratulusOn 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
Blacknose shiner Notropis heterolepisOn 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
Bluntnose minnow Pimephales notatusOn 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
Brassy minnow Hybognathus hankinsoniOn 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
Brook stickleback Culaea inconstansOn 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
Brook trout Salvelinus fontinalisOn 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
Brown bullhead Ameiurus nebulosusOn 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
Brown trout Salmo truttaOn 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
Common carp Cyprinus carpioOn 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
Common shiner Luxilus cornutusOn 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
Creek chub Semotilus atromaculatusOn 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
Fantail darter Etheostoma flabellareOn 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
Fathead minnow Pimephales promelasOn 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
Iowa darter Etheostoma exileOn 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
Johnny darter Etheostoma nigrumOn 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
Largemouth bass Micropterus nigricansOn 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 brook lamprey Ichthyomyzon fossorOn 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 hog sucker Hypentelium nigricansOn 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
Pumpkinseed Lepomis gibbosusOn 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
Rainbow darter Etheostoma caeruleumOn 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
Rainbow trout Oncorhynchus mykissOn 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
River chub Nocomis micropogonOn 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
Rock bass Ambloplites rupestrisOn 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
Sea lamprey Petromyzon marinusOn 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
Slimy sculpin Cottus cognatusOn 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
Spottail shiner Hudsonius hudsoniusOn 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
Stonecat Noturus flavusOn 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 sucker Catostomus commersoniiOn 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.

Brook troutClosed · 5 a day
Brown troutClosed · 5 a day
Largemouth bassOpen, any size · 6 a day
PumpkinseedOpen, any size · 50 a day
Rainbow troutClosed · 2 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 16 (SF-2022/16), Ontario Fishery Regulations, 2007, s. 13(1) (Schedule A, brook trout)

What's biting

This water is too small for community summaries: on a small water a summary could point to someone's spot.

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 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".

Spawning months:

Blacknose shiner: 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. 63 (Great Lakes populations: spawning mid-May to 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)
Brook stickleback: 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. 104 (Great Lakes populations: spawning April to mid-July at 40-74 °F, sometimes twice)
Brown bullhead: 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. 92 (Great Lakes populations: spawning April-August, usually June or July, at 62-72 °F)
Creek chub: 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. 74 (Great Lakes populations: spawning April to early July at 55-80 °F)

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