Lac Williams, Ontario: Fishing Spots and Seasons

• Overview

  Ontario holds Lac Williams, in Renfrew County. The ground around here is mixed forest. Small at around 8 hectares: two anglers spread out cover most of it. The closest town, Deep River, is 38 km away. After that come Chalk River at 46 km and Mattawa at 59 km. In the same area: Lac de l'Ourson within 1.7 km, Petit lac a l'Ours 2.4 km away, Lac du Laiteron within 3.7 km, Lac du Condor 3.8 km away and McSourley Lake within 4.4 km. No border sits close enough to matter.

• Where to Fish on Lac Williams

  Depth went unrecorded, which puts the reading back on you. Read the surface for the wind lane, then fish the edge of it. The productive water is a rod length or two out, not a hundred. Reported across Renfrew County: smallmouth bass, pumpkinseed and yellow perch. What holds for the county may not hold for this water. Work Lac Williams in sections rather than trying to cover it.

• Seasonal Patterns

  Expect July near 18°C and January near -14°C on the long-run figures. Expect a real winter and a strong spring after it. Ice fishing carries the winter, and the water opens about late April. In an average year the thaw lands around late April and the freeze near late November. September and October fish steadily right up to the freeze. On Lac Williams the same rules apply, with local timing.

• Tackle & Baits

  Our records carry no access rule either way. Formal access is not mapped, so the last stretch is likely on foot. Largemouth respond to soft plastics tight to cover; go weedless where the growth is heavy. Where the road in crosses private land, ask first. Some stretches are reserved and marked as such on the ground. Lac de l'Ourson sits 1.7 km off and takes the overflow. None of that is settled for Lac Williams in what we hold.