reservoir
Koosharem Reservoir
Goodconditions
67°todaySunny
Today’s report
Koosharem Reservoir is fishing well today. The DWR last stocked brown trout (2,021 fish) on October 1. This Afternoon's forecast: sunny, 67°F.
- stocked 16 days ago
- calm, fishable weather
Current conditions
Stocking
Last stocked Oct 1, 2026 — brown trout (2,021 fish).
| Date | Species | Quantity | Avg length |
|---|---|---|---|
| Oct 1, 2026 | brown trout | 2,021 | 3.82" |
| Oct 1, 2026 | rainbow trout | 8,570 | 3.48" |
| Mar 3, 2026 | rainbow trout | 3,001 | 9.32" |
| Nov 5, 2025 | rainbow trout | 1,947 | 10.39" |
| Oct 21, 2025 | rainbow trout | 3,009 | 7.85" |
| Oct 20, 2025 | brook trout | 835 | 13.27" |
| Oct 20, 2025 | tiger trout (brown × brook hybrid) | 1,980 | 5.46" |
| Oct 20, 2025 | rainbow trout | 6,000 | 4.92" |
Best time to fish Koosharem Reservoir
The DWR has stocked Koosharem Reservoir 36 times over the last 5 seasons, and 67% of those plants landed in March, April, October — the freshest fish and the easiest bite usually follow within a week or two of a stocking.
Species
brook troutcutthroat troutrainbow troutsplake (lake × brook trout hybrid)tiger trout (brown × brook hybrid)
Location
Nearby waters (within ~25 mi):
Big Lake — Monroe MtnSevier CountyFairFish LakeSevier CountyFairDeep Lake — Monroe MtnSevier CountyFairAnnabella Reservoir — Monroe MtnSevier CountyFairLost Creek Reservoir — Fishlake PlateauSevier CountyFairLower Box Creek Reservoir — Monroe MtnPiute CountyFairUpper Box Creek Reservoir — Monroe MtnPiute CountyFairRex Reservoir — Fishlake PlateauSevier CountyFair
Regulations
No water-specific rules listed for this water in the current Utah Fishing Guidebook — statewide general rules and daily limits apply (trout limit 4, combined). Verify in the current guidebook before you fish.
This week’s weather
This Afternoon
67°F
Sunny
Tonight
41°F
Mostly Cloudy
Sunday
60°F
Partly Sunny
Sunday Night
41°F
Partly Cloudy
Monday
61°F
Mostly Sunny then Slight Chance Light Rain
19% precip
Monday Night
41°F
Partly Cloudy
Tuesday
59°F
Chance Light Rain
37% precip
Tuesday Night
41°F
Slight Chance Light Rain then Partly Cloudy
16% precip
Wednesday
60°F
Mostly Sunny then Chance Showers And Thunderstorms
32% precip
Wednesday Night
44°F
Chance Showers And Thunderstorms then Chance Light Rain
40% precip