Solid cloud cover today, with a useful WSW wind pushing food about with the glass holding level. Activity on Rock Lake should centre on shallow cover and weed edges. The forecast is against you; the middle of the day is the least bad option. Short, focused sessions beat a long grind today.
The bites are poor now
Night
In Ontario, Rock Lake falls inside Sudbury. Height above sea level is 268 metres. With some 23 hectares of water, there is room for a boat but no need of one. Bank access stretches around 3.8 km in total. Espanola lies 10 km from the water. Greater Sudbury sits 55 km out, and it is the nearest city worth the name. A county boundary sits nearby, which can matter for local access rules.
There is no recorded depth, so work from what you can see. The productive water is a rod length or two out, not a hundred. Read the surface for the wind lane, then fish the edge of it. Fish documented in Sudbury include smallmouth bass, northern pike, yellow perch, Iowa darter and walleye. County data is a starting point rather than a guarantee. The shape of Rock Lake decides where the fish sit.
Seasonal averages run from -12°C in January up to 19°C in July. Winter shuts the surface down for months. The lid usually goes in late April, which opens the strongest weeks of the year. Climate figures give an open season running late April to early December. The strong weeks are the first after break-up and the last before the freeze. Plan any trip to Rock Lake around it.
Ownership and access are not documented in what we hold. Records list it as a natural water body rather than an impoundment. There is no mapped parking or launch close by, which usually means walking in. A small crankbait along the drop and a worm in the thick stuff cover the bass. Parking is often the real limit rather than the bank itself. Where tickets apply, they are sold in the nearest town rather than on the bank. The nearest alternative is Tenho Lake, 3.1 km out. Confirm before you fish Rock Lake.
34%
The bites are poor now
| 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 5.8 | 5.7 | 6.5 | 7.3 | 9.9 | 7.8 | 7.8 | 9.2 | 13.2 | 14.8 | 17 | 19.2 | 18.2 | 19.3 | 18.9 | 20 | 21.5 | 20.6 | 20.4 | 16.2 | 15.9 | 15.4 | 15.8 | 13.6 |
| 8° | 8° | 8° | 8° | 9° | 9° | 9° | 10° | 11° | 11° | 11° | 12° | 13° | 14° | 15° | 15° | 16° | 15° | 13° | 12° | 11° | 10° | 9° | 8° |
| 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 102 | 102 | 102 | 102 | 102 | 102 | 102 | 102 | 102 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 102 | 102 | 102 |
| 91 | 91 | 92 | 91 | 93 | 94 | 97 | 98 | 98 | 96 | 97 | 95 | 92 | 86 | 83 | 75 | 68 | 66 | 66 | 71 | 73 | 75 | 76 | 79 |
Sam
AI Fishing Assistant for Rock Lake
Morning
Afternoon
Evening
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time