Greenough Lake trout stocking
Carbon County, Montana · lake · 7,258 ft elevation
Greenough Lake was last stocked 2 months ago (Aug 25, 2026). We have 10 stockings on record since May 13, 2025, 4 in the last 12 months (6,015 fish). Most stockings come in May to August. Species stocked: rainbow trout.
- The second most stocked of 17 waters in Carbon County.
- Stocked more often than 97% of Montana waters on our record.
River conditions
Nearest USGS gage: Rock Creek near Red Lodge MT (8 km away, on a different stream or lake).
- Flow
- 47 cfs
- about normal for the last six weeks
- Gage height
- 5.34 ft
Latest reading Nov 9, 2026, 12:00 PM UTC. USGS data are provisional. Gage page at USGS.
Weather at Greenough Lake
- This Afternoon44°FCloudy6% rain · wind 6 mph
- Tonight26°FMostly Cloudy12% rain · wind 6 to 14 mph
- Friday42°FSunnywind 8 to 15 mph
- Friday Night28°FMostly Clearwind 12 to 16 mph
- Saturday48°FSunnywind 3 to 12 mph
- Saturday Night36°FMostly Clearwind 10 to 23 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Greenough Lake stocked?
Most stockings come in May to August. Stocked 4 times in 2026, mostly in August, usually on Tuesdays, about every 29 days.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | 2 | |||||||||
| 2025 | 2 | 1 | 2 | 1 |
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Rainbow trout | 10 | 12,349 | 1,235 | 9.8 in |
Stocking history
20264 stockings · 6,015 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Aug 25Latest Tuesday | Rainbow trout | 1,499 | 10.4 in | 13 days | Bluewater Springs Trout Hatchery |
Aug 12 Wednesday | Rainbow trout | 1,500 | 9.8 in | 9 weeks | Bluewater Springs Trout Hatchery |
Jun 10 Wednesday | Rainbow trout | 1,502 | 7.3 in | 29 days | Bluewater Springs Trout Hatchery |
May 12 Tuesday | Rainbow trout | 1,514 | 6.7 in | 258 days | Bluewater Springs Trout Hatchery |
20256 stockings · 6,334 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Aug 27 Wednesday | Rainbow trout | 1,798 | 11.7 in | 27 days | Bluewater Springs Trout Hatchery |
Jul 31 Thursday | Rainbow trout | 340 | 10.5 in | 1 day | Bluewater Springs Trout Hatchery |
Jul 30 Wednesday | Rainbow trout | 1,170 | 12.1 in | 50 days | Bluewater Springs Trout Hatchery |
Jun 10 Tuesday | Rainbow trout | 1,500 | 8.9 in | 20 days | Bluewater Springs Trout Hatchery |
May 21 Wednesday | Rainbow trout | 554 | 9.8 in | 8 days | Bluewater Springs Trout Hatchery |
May 13 Tuesday | Rainbow trout | 972 | 9.4 in | Bluewater Springs Trout Hatchery |
From Montana fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go. Seasons and limits: Montana fishing regulations.
Where is Greenough Lake?
Carbon County, Montana. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Greenough Lake
- Black Canyon Lakelake · 6 mistocked Aug 5, 2025
- Glacier Lake (; Emerald Lake)lake · 7 mistocked Aug 4, 2025
- Triangle Lakelake · 7 mistocked Aug 5, 2025
- Wild Bill Lakelake · 8 mistocked Aug 24, 2026
- Albino Lakelake · 8 mistocked Aug 5, 2025
- Sundance Lakelake · 9 mistocked Aug 5, 2025
- Golden Lakelake · 9 mistocked Aug 5, 2025
- Kookoo Lakelake · 10 mistocked Aug 5, 2025
All stocked waters in Carbon CountyStocked this week in Montana
Questions about Greenough Lake
- When was Greenough Lake last stocked?
- The latest reported stocking was Aug 25, 2026 (rainbow trout, 1,499 fish), according to Montana agency reports.
- How often is Greenough Lake stocked?
- Stocked 4 times in 2026, mostly in August, usually on Tuesdays, about every 29 days. Across all years on record, most stockings come in May to August.
- Is Greenough Lake stocked often?
- The second most stocked of 17 waters in Carbon County. Stocked more often than 97% of Montana waters on our record. We count each day the agency reported stocking it.
- What kind of trout are stocked in Greenough Lake?
- Rainbow trout (10 stockings, 12,349 fish).