Lost Lake fishing

Fishing at Lost Lake has Rainbow Trout, Arctic Grayling, and Cutthroat Trout on the stocking report. It is stocked about 1.3 times a year since 2011, most often in May and June. Species guides list dawn and dusk as the active times.

Last stocked

May 6, 2026

Plants on record

20

Since 2011

Species recorded

3

Average size

5.7 in

Elevation

2,947.9 ft

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How Lost Lake is stocked

The first plant of the year usually falls in the last week of May. In 2026 it was May 6, 2026, earlier than usual.

No plants recorded in 2014.

Pine Grove Pond (4.1 mi), Shady Lane Pond (4.7 mi), Snappys Pond (5.1 mi), and Beaver Lake (6.9 mi) were stocked more recently. Pine Grove Pond is also stocked with Rainbow Trout and Cutthroat Trout, Shady Lane Pond is also stocked with Cutthroat Trout and Rainbow Trout, Snappys Pond is also stocked with Rainbow Trout, Cutthroat Trout, and Arctic Grayling, and Beaver Lake is also stocked with Rainbow Trout and Cutthroat Trout.

Fish at Lost Lake

Fishing Lost Lake is most likely to be for Rainbow Trout. Rainbow Trout accounts for 17 of 20 plants on record, ahead of Arctic Grayling and one more.

Around the dates Lost Lake is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 52.4°F in May, 60.1°F in June, 68.3°F in July, 57.9°F in September. That is air temperature at these coordinates, not water temperature. Open-Meteo

Rainbow Trout 17 plants
Plants
17 of 20
Last stocked
May 6, 2026
Average length
6.3 in

Seasons and rigs are on the Rainbow Trout guide.

Arctic Grayling 2 plants
Plants
2 of 20
Last stocked
September 18, 2018
Average length
2 in

Seasons and rigs are on the Arctic Grayling guide.

Cutthroat Trout 1 plant
Plants
1 of 20
Last stocked
July 20, 2020
Average length
2.8 in

Seasons and rigs are on the Cutthroat Trout guide.

Fish stocked per year

  • 9482011
  • 9082012
  • 9592013
  • 1,2032015
  • 1,0022016
  • 1,0002017
  • 1,8002018
  • 2,2422019
  • 1,4512020
  • 1,0002021
  • 1,0002022
  • 1,1002023
  • 1,1002024
  • 1,0112025
  • 1,0072026

Stocking history

Showing 15 of 20 plants Showing 20 plants

Source: Montana Fish, Wildlife & Parks.
Date Species Quantity Avg. length Source
May 6, 2026 Rainbow Trout 1,007 3.26 in report
July 1, 2025 Rainbow Trout 1,011 3.76 in report
May 13, 2024 Rainbow Trout 1,100 7.76 in report
May 9, 2023 Rainbow Trout 1,100 7.74 in report
May 18, 2022 Rainbow Trout 1,000 7.98 in report
June 3, 2021 Rainbow Trout 1,000 7.4 in report
July 20, 2020 Cutthroat Trout 350 2.83 in report
May 21, 2020 Rainbow Trout 1,101 7.15 in report
October 8, 2019 Rainbow Trout 1,241 2.15 in report
June 3, 2019 Rainbow Trout 1,001 7.21 in report
September 18, 2018 Arctic Grayling 800 1.8 in report
June 6, 2018 Rainbow Trout 1,000 7.46 in report
May 24, 2017 Rainbow Trout 1,000 7.69 in report
June 2, 2016 Rainbow Trout 1,002 7.28 in report
September 14, 2015 Arctic Grayling 200 2.26 in report
June 9, 2015 Rainbow Trout 1,003 6.01 in report
September 12, 2013 Rainbow Trout 959 3.6 in report
May 23, 2012 Rainbow Trout 908 8.83 in report
July 1, 2011 Rainbow Trout 445 3.43 in report
April 26, 2011 Rainbow Trout 503 7.92 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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