Grassy Lake Reservoir
Fishing and stocking
Stocked monthly May through August in 2026, heaviest in July: rainbow trout and tiger trout, 5 plants in all. One of 37 stocked waters on the Sanpete County record.
Sanpete County · Utah · see it on the national map
The year here
stocked last 7 days announced ahead · tap a tick for details
What swims here
Rainbow trout
Tiger trout
Stocking record 2026
Agency feed checked today.
| Date | Species | Size | Fish | Status |
|---|---|---|---|---|
| May 12 | Tiger trout | fingerling | 2,860 | completed |
| Jun 16 | Rainbow trout | yearling | 994 | completed |
| Jul 8 | Rainbow trout | adult | 500 | completed |
| Jul 20 | Rainbow trout | adult | 499 | completed |
| Aug 3 | Rainbow trout | adult | 513 | completed |
When to fish Grassy Lake Reservoir
| Major periods (~2 h) | Minor periods (~1 h) | |
|---|---|---|
| Today | 10:07 am-12:07 pm and 10:29 pm-12:29 am | 4:25-5:25 am and 4:37-5:37 pm |
| Tomorrow | 10:53 am-12:53 pm | 5:33-6:33 am and 5:02-6:02 pm |
Moon: waxing gibbous, 93% lit. These are solunar periods, the traditional feeding-time theory: majors around the moon's transit overhead and underfoot, minors around moonrise and moonset. Theory, not a measurement. Times are Mountain Time (MDT).
What the record actually says
- Last stocked Aug 3
Computed this evening, Oct 23 · Utah fishing forecast
Gear for this water
It has been a while since the trucks came. The holdovers have spread out and wised up; downsize and fish natural.
For the trout (rainbow trout stocked 4 times here in 2026, stillwater)
| Small crankbaits | trout-pattern cranks trolled or slow-retrieved off points |
| Slip bobber and jig | 1/32 oz marabou jig or waxworm suspended at cruising depth |
| Ultralight spinning rod | 6 to 7 ft ultralight, 4 lb line; long casts from the bank |
Suggestions follow from what the state actually stocks here and what kind of water it is, nothing else. No sponsored placements.
Nearby stocked waters
The closest waters with stocking pages of their own, straight-line miles from this one.
| Water | Distance | Most recent |
|---|---|---|
| Jewkes-Van Buren Lake | 1.0 mi | Jul 20 |
| Joes Valley Reservoir | 3.4 mi | Sep 16 |
| Academy Mill Reservoir | 3.4 mi | Jul 14 |
| Soup Bowl Reservoir | 3.5 mi | Jul 20 |
| Petes Hole | 3.6 mi | Jul 20 |
Follow Sanpete County stocking: RSS / Calendar (iCal) / Print the schedule