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Ontario fishing maps / Leeds and Grenville United Counties

Fishing in Leeds and Grenville United Counties, Ontario

54 lakes and rivers in Leeds and Grenville United Counties have free interactive depth charts here, 24 of them built on real survey bathymetry. The deepest is Big Rideau Lake at 300 ft. Open any water for species-rated spots, seasonal bite windows and bait picks.

What this local map set contains

The Leeds and Grenville United Counties directory currently covers 54 lakes or reservoirs. 24 charts use measured bathymetry from a published source; 30 charts are clearly labeled as modeled. Recorded maximum depths range from 3 to 300 ft, with a median of 35 ft. Those figures describe each chart's deepest recorded or modeled point, not a safe navigation depth.

Species records are attached to 54 of 54 waters. The most frequently cataloged targets are Yellow Perch (47), Pumpkinseed (46), Largemouth Bass (45), Northern Pike (45) and Brown Bullhead (43). 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. Charleston Lake: 295 ft maximum; survey-backed contours; 16 cataloged target species.
  2. Sand Lake: 45 ft maximum; survey-backed contours; 14 cataloged target species.
  3. Otter Lake: 120 ft maximum; survey-backed contours; 13 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 29 of 54 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) · Grey (47) · Haliburton (295) · Hastings (30) · Kawartha Lakes (20) · Kenora (1173) · Lanark (74) · 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.