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Ontario fishing maps / Grey County

Fishing in Grey County, Ontario

47 lakes and rivers in Grey County have free interactive depth charts here, 12 of them built on real survey bathymetry. The deepest is Georgian Bay - Owen Sound & Colpoys Bay at 405 ft. Open any water for species-rated spots, seasonal bite windows and bait picks.

What this local map set contains

The Grey County directory currently covers 47 lakes or reservoirs. 12 charts use measured bathymetry from a published source; 35 charts are clearly labeled as modeled. Recorded maximum depths range from 3 to 405 ft, with a median of 13 ft. Those figures describe each chart's deepest recorded or modeled point, not a safe navigation depth.

Species records are attached to 47 of 47 waters. The most frequently cataloged targets are Yellow Perch (28), Smallmouth Bass (25), Rock Bass (22), Brook Trout (19) and Pumpkinseed (17). These are coverage counts, not abundance estimates or catch forecasts; open the individual map to see the evidence and seasonal context attached to that water.

Three useful maps to compare first

  1. Eugenia Lake: 40 ft maximum; survey-backed contours; 11 cataloged target species.
  2. Georgian Bay - Owen Sound & Colpoys Bay: 405 ft maximum; survey-backed contours; 10 cataloged target species.
  3. Irish Lake: 20 ft maximum; survey-backed contours; 10 cataloged target species.

Start with a survey-backed chart when exact contour shape matters most. Use a modeled chart as broad planning context, then verify depths on the water. Comparing the three examples above also shows whether this area offers one dominant basin type or genuinely different shallow, deep, lake and river options. Access is separate from map coverage: confirm launches, shore rights, closures and posted rules before making the trip.

Showing 15 of 47 waters. Use the interactive water search to find another local map.

More water across Ontario: Algoma (1026) · Bruce (60) · Cochrane (673) · Frontenac (127) · Greater Sudbury / Grand Sudbury (88) · Haliburton (295) · Hastings (30) · Kawartha Lakes (20) · Kenora (1173) · Lanark (74) · Leeds and Grenville (54) · Lennox and Addington (23) · Manitoulin (10) · Middlesex (5) · Muskoka (276) · Nipissing (683) · Parry Sound (441) · Peel (5) · Peterborough (83) · Rainy River (257) · Renfrew (298) · Simcoe (31) · Sudbury (868) · Thunder Bay (662) · Timiskaming (515) · York (16) — or all Ontario fishing maps.