Sylvia Lake fishing

Fishing at Sylvia Lake has Arctic Grayling and Cutthroat Trout on the stocking report. It is stocked about 1.5 times a year since 2011, most often in June and August.

Last stocked

August 8, 2025

Plants on record

22

Since 2011

Species recorded

2

Average size

1.3 in

Elevation

4,915.6 ft

Access and facts

Nearest town
Whitefish
Boat ramp
Yes
Fee required
No
Facilities
camping, restrooms

Flathead National Forest's Sylvia Lake Campground, about 33 road miles northwest of Whitefish off Hwy 93. Three campsites with tables and fire rings, a vault toilet, a small canoe/kayak launch, and no fee.

Sources: access , shore_notes , nearest_town , facilities

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How Sylvia Lake is stocked

The first plant of the year usually falls in the fourth week of June. In 2025 it was August 8, 2025, later than usual.

No plants recorded in 2020.

Bootjack Lake (7.4 mi), Smith Lake (11 mi), Loon Lake (12.2 mi), and Bull Lake (14.2 mi) were stocked more recently. Bootjack Lake is also stocked with Cutthroat Trout, Smith Lake is also stocked with Cutthroat Trout, Loon Lake is also stocked with Cutthroat Trout, and Bull Lake is also stocked with Cutthroat Trout.

Fish at Sylvia Lake

Fishing Sylvia Lake is most likely to be for Cutthroat Trout. Cutthroat Trout accounts for 13 of 22 plants on record, ahead of Arctic Grayling.

Around the dates Sylvia Lake is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 62.4°F in August, 54.5°F in June, 52.8°F in September, 63.9°F in July. That is air temperature at these coordinates, not water temperature. Open-Meteo

Cutthroat Trout 13 plants
Plants
13 of 22
Last stocked
August 8, 2025
Average length
1.5 in

Seasons and rigs are on the Cutthroat Trout guide.

Arctic Grayling 9 plants
Plants
9 of 22
Last stocked
June 22, 2023
Average length
1 in

Seasons and rigs are on the Arctic Grayling guide.

Fish stocked per year

  • 27,1252011
  • 12,0032012
  • 11,3192013
  • 2,1002014
  • 11,9792015
  • 10,0002016
  • 4,0982017
  • 2,0002018
  • 11,5002019
  • 12,0002021
  • 12,0082022
  • 11,4002023
  • 2,0002024
  • 2,0002025

Stocking history

Showing 15 of 22 plants Showing 22 plants

Source: Montana Fish, Wildlife & Parks.
Date Species Quantity Avg. length Source
August 8, 2025 Cutthroat Trout 2,000 1.5 in report
September 4, 2024 Cutthroat Trout 2,000 1.48 in report
June 22, 2023 Arctic Grayling 11,400 1 in report
July 13, 2022 Cutthroat Trout 1,998 1.23 in report
July 13, 2022 Arctic Grayling 10,010 1.54 in report
September 1, 2021 Cutthroat Trout 2,000 2 in report
June 3, 2021 Arctic Grayling 10,000 0.95 in report
August 5, 2019 Cutthroat Trout 1,500 1.21 in report
June 3, 2019 Arctic Grayling 10,000 0.25 in report
August 2, 2018 Cutthroat Trout 2,000 1.5 in report
August 30, 2017 Cutthroat Trout 1,998 1.62 in report
August 30, 2017 Cutthroat Trout 2,100 2 in report
June 30, 2016 Arctic Grayling 10,000 1.12 in report
August 27, 2015 Cutthroat Trout 1,829 1.65 in report
June 22, 2015 Arctic Grayling 10,150 1.1 in report
September 5, 2014 Cutthroat Trout 2,100 1.52 in report
August 5, 2013 Cutthroat Trout 1,319 1.1 in report
June 19, 2013 Arctic Grayling 10,000 1 in report
August 30, 2012 Cutthroat Trout 2,003 1.48 in report
June 6, 2012 Arctic Grayling 10,000 1 in report
August 11, 2011 Cutthroat Trout 2,125 1.43 in report
June 1, 2011 Arctic Grayling 25,000 1 in report
Show 7 more plants Show less

Species stocked here

Depth-by-season, top lures, and bait notes for each species stocked here are on its own species guide, linked above.

Nearest lakes