Cook Lake trout stocking
Crook County, Wyoming · lake · about 4,736 ft elevation
Cook Lake was last stocked 4 weeks ago (Sep 1 to 30, 2026). We have 16 stockings on record since May 1, 2017, 2 in the last 12 months (4,061 fish). Most stockings come in May to June. Species stocked: rainbow trout, tiger trout, brown trout, Snake River cutthroat trout.
- The third most stocked of 3 waters in Crook County.
- Stocked more often than 82% of Wyoming waters on our record.
Weather at Cook Lake
- Overnight52°FMostly Cloudy2% rain · wind 3 mph
- Tuesday69°FMostly Sunny2% rain · wind 6 mph
- Tuesday Night52°FMostly Clear2% rain · wind 3 to 7 mph
- Wednesday71°FSunnywind 6 to 13 mph
- Wednesday Night46°FPartly Cloudy4% rain · wind 3 to 14 mph
- Thursday64°FMostly Sunny6% rain · wind 6 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Cook Lake stocked?
Most stockings come in May to June.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | ||||||||||
| 2025 | 1 | |||||||||||
| 2024 | 1 | 1 | ||||||||||
| 2023 | 1 | 1 | ||||||||||
| 2022 | 1 | 1 | 1 | |||||||||
| 2021 | 1 | 1 | ||||||||||
| 2020 | 1 | 1 | ||||||||||
| 2018 | 1 |
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Rainbow trout | 12 | 45,266 | 3,772 | 8.5 in |
| Tiger trout | 3 | 4,640 | 1,547 | 3.7 in |
| Brown trout | 1 | 260 | 260 | 13.6 in |
| Snake River cutthroat trout | 1 | 2,342 | 2,342 | 5.3 in |
Stocking history
20262 stockings · 4,061 fish
| Date | Species | Fish | Size |
|---|---|---|---|
SeptemberLatest sometime this month | Brown trout | 260 | 13.6 in |
June sometime this month | Rainbow trout | 3,801 | 8.8 in |
20251 stocking · 6,199 fish
| Date | Species | Fish | Size |
|---|---|---|---|
April sometime this month | Rainbow trout | 6,199 | 8.3 in |
20242 stockings · 4,000 fish
| Date | Species | Fish | Size |
|---|---|---|---|
May sometime this month | Rainbow trout | 1,116 | 8.5 in |
April sometime this month | Rainbow trout | 2,884 | 8.0 in |
20232 stockings · 3,615 fish
- June rainbow trout, 1,614 fish
- May rainbow trout, 2,001 fish
20223 stockings · 9,942 fish
- September tiger trout, 1,550 fish
- July rainbow trout, 6,442 fish
- June rainbow trout, 1,950 fish
20212 stockings · 8,296 fish
- June Snake River cutthroat trout, 2,342 fish
- May rainbow trout, 5,954 fish
20202 stockings · 9,067 fish
- June rainbow trout, 5,735 fish
- May rainbow trout, tiger trout, 3,332 fish
20181 stocking · 1,550 fish
- May tiger trout, 1,550 fish
20171 stocking · 5,778 fish
- May rainbow trout, 5,778 fish
From Wyoming 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: Wyoming fishing regulations.
Where is Cook Lake?
Crook County, Wyoming. Approximate: the marker is the USGS place-name point for this water, not an agency location.
Stocked waters near Cook Lake
- Medicine Lakelake · 12 mistocked Apr 1, 2026
All stocked waters in Crook CountyStocked this week in Wyoming
Questions about Cook Lake
- When was Cook Lake last stocked?
- The latest reported stocking was Sep 1 to 30, 2026 (brown trout, 260 fish), according to Wyoming agency reports.
- How often is Cook Lake stocked?
- It was stocked 2 times in the last 12 months. Across all years on record, most stockings come in May to June.
- Is Cook Lake stocked often?
- The third most stocked of 3 waters in Crook County. Stocked more often than 82% of Wyoming waters on our record. We count each day the agency reported stocking it.
- What kind of trout are stocked in Cook Lake?
- Rainbow trout (12 stockings, 45,266 fish); Tiger trout (3 stockings, 4,640 fish); Brown trout (1 stocking, 260 fish); Snake River cutthroat trout (1 stocking, 2,342 fish).
Stocking data from the Wyoming Game and Fish Department's fish stocking report, which records stockings by month with species, number and average length.