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Sanpete County

Grassy Lake Reservoir

Utah DWR logged 5 trout stocking dates at Grassy Lake Reservoir in 2026 so far, 5,366 fish in all. The latest was on Aug 3, 2026. Utah DWR lists it as “Grassy Lake Res”.

Utah DWR data pulled . Latest record in the Utah DWR data for any water: Nov 4, 2026.

A lake
Photo: asmuSe, Pixabay License, Pixabay

Grassy Lake Reservoir in numbers

fish stocked in 2026, through Nov 6
5,366
by the same date in 2025
5,032
in all of 2025
5,032
Stocking log

Every stocking record

Counts include small fish (fingerlings) as well as catchable trout; the average length tells them apart. Every trout release Utah DWR lists for this water in the last two years, newest first, then yearly totals since 2020. Average length is the figure DWR gives for each batch.

Last stocked, Aug 3, 2026513Rainbow trout, avg 10.68 in
2026 · 5,366 fish on 5 dates
DateSpeciesFishAvg. length
Aug 3Rainbow trout513 fish51310.68 in
Jul 20Rainbow trout499 fish49910.28 in
Jul 8Rainbow trout500 fish50010.77 in
Jun 16Rainbow trout994 fish9949.63 in
May 12Tiger trout2,860 fish2,8602.96 in
2025 · 5,032 fish on 2 dates
DateSpeciesFishAvg. length
Jul 17Rainbow trout872 fish87211.07 in
Jul 17Rainbow trout622 fish62211.07 in
Jun 10Tiger trout2,530 fish2,5302.96 in
Jun 10Rainbow trout1,008 fish1,0089.87 in
Every year since 2020
YearStocking datesFish
202655,366
202525,032
202454,990
202324,485
202255,030
202133,754
202045,064
2020 – 2026

Trout stocked each year

2026 is outlined because the year is not over. The tallest full year is yellow.

  1. 5.1k2020: 5,064 fish
  2. 3.8k2021: 3,754 fish
  3. 5.0k2022: 5,030 fish
  4. 4.5k2023: 4,485 fish
  5. 5.0k2024: 4,990 fish
  6. 5.0k2025: 5,032 fish
  7. 5.4k2026: 5,366 fish

What is stocked here

All records since 2020
SpeciesFishShare
Tiger trout17,95953%
Rainbow trout15,76247%

Where it is

Utah trout stockingAll Sanpete County watersRecently stocked in Utah

No single map point is given for this water in the USGS names database, so no map is shown.

Also in Sanpete County: Palisade Reservoir, Mount Pleasant Pond, Yearns Reservoir, Community Lake, Petes Hole, Gooseberry Reservoir, Benchs Pond, Boulger Pond.

Source: DWR fish stocking report, Utah Division of Wildlife Resources. Pulled . Check the agency and the current fishing rules before you go.