Grassy Lake Reservoir trout stocking
Teton County, Wyoming · lake · about 7,201 ft elevation
Grassy Lake Reservoir was last stocked 4 months ago (Jun 1 to 30, 2026). We have 10 stockings on record since Jul 1, 2017, 1 in the last 12 months (15,009 fish). Most stockings come in July. Species stocked: Snake River cutthroat trout.
- Number 6 of 20 stocked waters in Teton County by stocking days.
- Stocked more often than 63% of Wyoming waters on our record.
Weather at Grassy Lake Reservoir
- Tonight30°FSlight Chance Showers And Thunderstorms then Partly Cloudy14% rain · wind 3 mph
- Tuesday61°FSunny2% rain · wind 2 to 7 mph
- Tuesday Night32°FMostly Clear3% rain · wind 0 to 6 mph
- Wednesday63°FSunnywind 0 to 5 mph
- Wednesday Night33°FMostly Clearwind 0 to 3 mph
- Thursday64°FSunnywind 2 to 7 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Grassy Lake Reservoir stocked?
Most stockings come in July.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | |||||||||||
| 2025 | 1 | |||||||||||
| 2024 | 1 | |||||||||||
| 2023 | 1 | |||||||||||
| 2022 | 1 | |||||||||||
| 2021 | 1 | |||||||||||
| 2020 | 1 | |||||||||||
| 2019 | 1 |
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Snake River cutthroat trout | 10 | 156,645 | 15,665 | 5.5 in |
Stocking history
20261 stocking · 15,009 fish
| Date | Species | Fish | Size |
|---|---|---|---|
JuneLatest sometime this month | Snake River cutthroat trout | 15,009 | 5.2 in |
20251 stocking · 16,054 fish
| Date | Species | Fish | Size |
|---|---|---|---|
June sometime this month | Snake River cutthroat trout | 16,054 | 5.5 in |
20241 stocking · 16,495 fish
| Date | Species | Fish | Size |
|---|---|---|---|
June sometime this month | Snake River cutthroat trout | 16,495 | 5.5 in |
20231 stocking · 16,296 fish
- July Snake River cutthroat trout, 16,296 fish
20221 stocking · 15,020 fish
- July Snake River cutthroat trout, 15,020 fish
20211 stocking · 15,872 fish
- July Snake River cutthroat trout, 15,872 fish
20201 stocking · 15,017 fish
- July Snake River cutthroat trout, 15,017 fish
20191 stocking · 14,448 fish
- July Snake River cutthroat trout, 14,448 fish
20181 stocking · 16,342 fish
- July Snake River cutthroat trout, 16,342 fish
20171 stocking · 16,092 fish
- July Snake River cutthroat trout, 16,092 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 Grassy Lake Reservoir?
Teton County, Wyoming. Approximate: the marker is the USGS place-name point for this water, not an agency location.
Stocked waters near Grassy Lake Reservoir
- Fish Lakelake · 6 mistocked Jul 1, 2026
- Gravel Lakelake · 23 mistocked Jul 1, 2025
All stocked waters in Teton CountyStocked this week in Wyoming
Questions about Grassy Lake Reservoir
- When was Grassy Lake Reservoir last stocked?
- The latest reported stocking was Jun 1 to 30, 2026 (Snake River cutthroat trout, 15,009 fish), according to Wyoming agency reports.
- How often is Grassy Lake Reservoir stocked?
- It was stocked 1 times in the last 12 months. Across all years on record, most stockings come in July.
- Is Grassy Lake Reservoir stocked often?
- Number 6 of 20 stocked waters in Teton County by stocking days. Stocked more often than 63% of Wyoming waters on our record. We count each day the agency reported stocking it.
- What kind of trout are stocked in Grassy Lake Reservoir?
- Snake River cutthroat trout (10 stockings, 156,645 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.