Tunnel Lake fishing

Fishing at Tunnel Lake has Cutthroat Trout and Arctic Grayling on the stocking report. It is stocked about 1.1 times a year since 2011, most often in June and July.

Last stocked

May 21, 2026

Plants on record

17

Since 2011

Species recorded

2

Average size

4.7 in

Elevation

4,328.6 ft

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How Tunnel Lake is stocked

The first plant of the year usually falls in the third week of June. In 2026 it was May 21, 2026, earlier than usual.

Nilan Reservoir (12 mi) was stocked more recently.

Fish at Tunnel Lake

Fishing Tunnel Lake is most likely to be for Cutthroat Trout. Cutthroat Trout accounts for 16 of 17 plants on record, ahead of Arctic Grayling.

Around the dates Tunnel Lake is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 58.6°F in June, 67.2°F in July, 49.8°F in May, 65.2°F in August. That is air temperature at these coordinates, not water temperature. Open-Meteo

Cutthroat Trout 16 plants
Plants
16 of 17
Last stocked
May 21, 2026
Average length
4.9 in

Seasons and rigs are on the Cutthroat Trout guide.

Arctic Grayling 1 plant
Plants
1 of 17
Last stocked
August 29, 2022
Average length
1.5 in

Seasons and rigs are on the Arctic Grayling guide.

Fish stocked per year

  • 2,0002011
  • 1,8002012
  • 2,0002013
  • 2,0002014
  • 2,0002015
  • 2,0002016
  • 2,0002017
  • 2,0002018
  • 2,0002019
  • 2,0002020
  • 2,0002021
  • 3,0692022
  • 2,0002023
  • 2,0002024
  • 1,9802025
  • 2,0002026

Stocking history

Showing 15 of 17 plants Showing 17 plants

Source: Montana Fish, Wildlife & Parks.
Date Species Quantity Avg. length Source
May 21, 2026 Cutthroat Trout 2,000 4.73 in report
June 3, 2025 Cutthroat Trout 1,980 4.42 in report
June 19, 2024 Cutthroat Trout 2,000 3.85 in report
July 4, 2023 Cutthroat Trout 2,000 5.06 in report
August 29, 2022 Arctic Grayling 1,069 1.5 in report
June 15, 2022 Cutthroat Trout 2,000 4.97 in report
June 8, 2021 Cutthroat Trout 2,000 4.81 in report
June 3, 2020 Cutthroat Trout 2,000 5.06 in report
June 19, 2019 Cutthroat Trout 2,000 5.02 in report
July 3, 2018 Cutthroat Trout 2,000 5.21 in report
June 7, 2017 Cutthroat Trout 2,000 5.23 in report
June 15, 2016 Cutthroat Trout 2,000 4.97 in report
June 19, 2015 Cutthroat Trout 2,000 4.46 in report
June 12, 2014 Cutthroat Trout 2,000 4.64 in report
June 27, 2013 Cutthroat Trout 2,000 5.69 in report
June 13, 2012 Cutthroat Trout 1,800 5.87 in report
June 27, 2011 Cutthroat Trout 2,000 5.06 in report
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Species stocked here

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

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