Lake Couchiching

Lake facts

• Surface area

  49.0 km²

  Public record · Ontario MNR Aquatic Resource Area (ARA) Water Poly Segment, Land Information Ontario open data (data used by Fish ON-Line) · checked November 5 2026

• Deepest point

  12.0 m

  Public record · Ontario MNR Aquatic Resource Area (ARA) Water Poly Segment, Land Information Ontario open data (data used by Fish ON-Line) · checked November 5 2026

• Boating rules

  No lake-specific restriction found in the schedules for the open lake. Schedule 5: 10 km/h on the Trent-Severn Waterway from Lake Couchiching to Sparrow Lake, and on the Green River (East Branch Severn River) from the CNR bridge near Lake Couchiching. Elsewhere on the lake the general rule applies: 10 km/h within 30 m of shore (Vessel Operation Restriction Regulations, s. 2(7)).

  Public record · Transport Canada, Schedules of the Vessel Operation Restriction Regulations (TP 15587), 2nd edition April 2026 · checked November 5 2026

• Fish in the lake

  Walleye, Northern Pike, Muskellunge, Smallmouth Bass, Largemouth Bass, Lake Trout, Lake Whitefish, Yellow Perch, Black Crappie, Bluegill, Pumpkinseed, Rock Bass, Burbot, Channel Catfish, Brown Bullhead, Common Carp. These game and pan fish are recorded in MNR lake data; not all are common today.

  Public record · Ontario MNR Aquatic Resource Area (ARA) Water Poly Segment, Land Information Ontario open data (data used by Fish ON-Line) · checked November 5 2026

• Fishing zone

  Zone 16

  Public record · Fisheries Management Zone 16, Ontario Fishing Regulations Summary, ontario.ca · checked November 5 2026

• Water clarity

  Lake Partner Program volunteer data: 2025 average water clarity (Secchi depth) 3.3 m from 6 readings; 2025 average total phosphorus 17.4 micrograms per litre from 6 samples.

  Public record · Ontario Lake Partner Program open data, Secchi depth and total phosphorus files (2025 release), data.ontario.ca/dataset/ontario-lake-partner · checked November 5 2026

• Boat launches

  Provincial data lists 17 boat launch or access points on or beside the lake (2 marked municipal, provincial or federal; others private or not stated). Named public sites are Centennial Park and Collins Drive (City of Orillia). Many points are road-end or emergency access points. Check ownership, fees and parking locally.

  Public record · Ontario MNR Fishing Access Point layer, Land Information Ontario open data (points within 400 m of the lake outline) · checked November 5 2026

General information only. Lake rules and conditions change: check the official source before you swim, boat or fish.