Cutthroat Trout Stocked · 8 plants · last July 17, 2019 Last stocked July 17, 2019 · avg 2.3 in · 8 plants
Cutthroat Trout species guideMirror Lake fishing
Mirror Lake fishing: not stocked since July 17, 2019. It was stocked with Cutthroat Trout on a high alpine lake. Also recorded: Rainbow Trout. Species guides list dawn and dusk as the active times.
- Last stocked
- July 17, 2019
- · Cutthroat Trout
- Plants on record
- 8
- Since 2011
- Species stocked
- 1 (+1 also recorded)
- Average size
- 2.3 in
- Elevation
- 9,669.8 ft
Fish at Mirror Lake
Around the dates Mirror Lake is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 52.5°F in July, 42.1°F in June, 50.8°F in August. That is air temperature at these coordinates, not water temperature. Open-Meteo
Cutthroat Trout Stocked · 8 plants · last July 17, 2019 
Rainbow Trout Confirmed present Best: dawn, dusk Best: dawn, dusk
Rainbow Trout species guideHow Mirror Lake is stocked
No plants recorded in 2016.
Fish stocked in 2011
11,750
Fish stocked in 2012
11,750
Fish stocked in 2013
4,000
Fish stocked in 2014
11,750
Fish stocked in 2015
11,000
Fish stocked in 2017
7,500
Fish stocked in 2018
11,750
Fish stocked in 2019
11,750
Stocking history
| Date | Species | Quantity | Avg. length | Source |
|---|---|---|---|---|
| July 17, 2019 | Cutthroat Trout | 11,750 | 2.75 in | report |
| July 23, 2018 | Cutthroat Trout | 11,750 | 2.17 in | report |
| July 17, 2017 | Cutthroat Trout | 7,500 | 2.1 in | report |
| June 29, 2015 | Cutthroat Trout | 11,000 | 1.94 in | report |
| July 14, 2014 | Cutthroat Trout | 11,750 | 2.5 in | report |
| July 14, 2013 | Cutthroat Trout | 4,000 | 2.5 in | report |
| July 9, 2012 | Cutthroat Trout | 11,750 | 2 in | report |
| August 1, 2011 | Cutthroat Trout | 11,750 | 2.4 in | report |
Access and facts
- Water type
- high alpine
Trail-only 16-acre lake on a plateau at the head of Rainbow Creek in the Boulder drainage, about 10.75 miles from the Upsidedown Creek trailhead on USFS Trail 26 with roughly 4,100 ft of climb. Campsites are best near the outlet. Up to about 80 ft deep, the deepest lake in the drainage.
Drafted by AI from the cited sources and checked before publishing.
Advisories, closures, regulations and water conditions change. Check the Montana Fish, Wildlife & Parks before you go.
Nearest lakes
Public land at Mirror Lake
Mirror Lake is inside Absaroka-Beartooth Wilderness and Custer Gallatin National Forest.
Boundaries from Public Lands DB, part of the same network.
Common questions
What fish are at Mirror Lake?
Fishing Mirror Lake usually means Cutthroat Trout. All 8 plants on record are Cutthroat Trout. Cutthroat Trout was last stocked July 17, 2019, averaging 2.3 in. Rainbow Trout is recorded here outside the stocking reports.
When is Mirror Lake stocked?
Not stocked since July 17, 2019. No plants recorded in 2016.
How big are the fish stocked at Mirror Lake?
Cutthroat Trout stocked at Mirror Lake average 2.3 in.
How do you get on Mirror Lake?
Trail-only 16-acre lake on a plateau at the head of Rainbow Creek in the Boulder drainage, about 10.75 miles from the Upsidedown Creek trailhead on USFS Trail 26 with roughly 4,100 ft of climb. Campsites are best near the outlet. Up to about 80 ft deep, the deepest lake in the drainage.
Which lakes near Mirror Lake were stocked more recently?
Rainbow Lake #2 (1.1 mi), Rainbow Lake #3 (1.4 mi), Rainbow Lake 5 (1.4 mi), and Rainbow Lake #4 (1.4 mi) were stocked more recently. Rainbow Lake #2 is also stocked with Cutthroat Trout, Rainbow Lake #3 is also stocked with Cutthroat Trout, Rainbow Lake 5 is also stocked with Cutthroat Trout, and Rainbow Lake #4 is also stocked with Cutthroat Trout.