Sullivan Lake
MU 3-27, Thompson-Nicola
50.9638° N, 120.1176° W
- Surface area
- 100.7ha
- Maximum depth
- 24.1m
- 79 ft
- Elevation
- 1,152m
- Campsites
- 4
- At Sullivan Lake (knouff) rec site
Open Sullivan Lake in the appThe 7-day forecast, max depth and wildfire smoke check, on the lake's own coordinate.
Trophy fish at Sullivan Lake
Sullivan Lake is known for trophy Rainbow trout to 17.5 lb.
- Rainbow trout to 17.5 lb
Trophy sizes this lake is known for, not a typical catch. They are historical records from our own big fish list, with no date on file, not recent catches.
Sullivan Lake at a glance
- Region
- Thompson-Nicola
- Management unit
- MU 3-27
- Species
- Rainbow TroutThe newest of these fish records is from 2026.Species from the province's fish observation records.
- Lake size
- Medium Lake (50 - 500 ha)
- Coordinates
- 50.96378, -120.117645
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Gear for rainbow trout
Lines, leaders, lures and flies for rainbow trout, searched on Amazon.ca.
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Fish on record at Sullivan Lake
| Species | First recorded | Last recorded | Records |
|---|---|---|---|
| Rainbow Trout | 1930 | 2026 | 656 |
A year is when the Province last recorded the fish here, not a statement that it is caught today.
Sullivan Lake fishing regulations
We have no lake specific regulations on file for Sullivan Lake yet.
Getting to Sullivan Lake
14.7 km of traced road to the campground by way of Knouff Lake Rd and Vinsula-Knouff Lake Rd. The road at the end is a loose surface.
Coordinates: 50.96378, -120.117645
Camping and rec sites at Sullivan Lake
- Sullivan Lake Islands
No campsite count on file (BC Recreation Sites and Trails) - Sullivan Lake (knouff)
- Campsites
- 4 designated
- To the shore
- 36 m
Coordinates: 50.973289, -120.121309
Depth chart for Sullivan Lake
24.1 mdeepest
Sullivan Lake runs to 24.1 m (79 ft) at its deepest.
The Province sounded Sullivan Lake and published the depth chart. It runs to 2 sheets.
The ice year at Sullivan Lake, modelled
Modelled from air temperature, not an ice report. It says nothing about whether ice will hold you.
In the model Sullivan Lake froze in 65 of the 65 winters since 1960. Freeze-up falls most years between 28 October and 9 November, and ice-off between 4 May and 20 May. The median winter freezes on 3 November and opens on 14 May.
the middle half of modelled winters the median ice cover in the median winter
Winter 2024-25 in the model: frozen from 15 November 2024 to 25 April 2025, 161 days.
We have no ice fishing regulation on file for Sullivan Lake either way. Check the current BC Freshwater Fishing Regulations Synopsis before you plan a trip.
Whether a lake is open to ice fishing says nothing about whether its ice will hold you. Ice conditions vary year to year and across a single lake. Check locally before going out, every time.
Sullivan Lake climate, 1960 to 2025
Averaged over a year, the air above Sullivan Lake is 1.2 C warmer than it was in the 1960s. That is 66 years of daily readings, not a forecast.
- +1.2 Csince the 1960s
- 1.4 Caverage year now
- 0.2 Caverage year then
- -10 daysbelow freezing, change
each yearthe trend across 1960 to 2025
each yearthe trend across 1960 to 2025
This week at Sullivan Lake
The forecast on this lake's own coordinate, refreshed through the day. The app reads these seven days for fishing and scores each one.
| Day | Sky | High / low | Wind | Rain | Pressure |
|---|---|---|---|---|---|
| Wed 21 Oct | Overcast | 12° / 0° | 7 km/h | dry | Steady |
| Thu 22 Oct | Moderate rain | 10° / 0° | 16 km/h, gusts 36 | 1 mm | Steady |
| Fri 23 Oct | Overcast | 6° / -1° | 17 km/h, gusts 49 | dry | Rising (+12.4 hPa) |
| Sat 24 Oct | Moderate rain | 3° / -1° | 2 km/h, gusts 31 | 2 mm | Falling (-2.1 hPa) |
| Sun 25 Oct | Overcast | 8° / 0° | 5 km/h, gusts 23 | dry | Rising (+1.4 hPa) |
| Mon 26 Oct | Partly cloudy | 8° / 0° | 5 km/h | dry | Falling (-5.1 hPa) |
| Tue 27 Oct | Overcast | 7° / 0° | 8 km/h | dry | Rising (+1.4 hPa) |
Sullivan Lake, in brief
What fish are in Sullivan Lake?
Rainbow Trout. Species from the province's fish observation records.
How big is Sullivan Lake?
Sullivan Lake covers about 100.7 ha, by the province's Freshwater Atlas.
Which management unit is Sullivan Lake in?
Sullivan Lake is in MU 3-27, in the Thompson-Nicola. The BC Freshwater Fishing Regulations Synopsis is organised by management unit; check it before you go.
Trout lakes near Sullivan Lake
- Knouff (Sullivan) Lake 3 km away
- Community Lake 5 km away
- Badger Lake 7 km away
- Little Heffley Lake 13 km away
- Heffley Lake 15 km away
All 342 lakes in the Thompson-Nicola, with today's conditions on each.