lake

Cook Lake — Boulder Mtn

Wayne County · Southern region

Fairconditions
44°todaySunny

Today’s report

Cook Lake — Boulder Mtn is a fair bet today. The DWR last stocked brook trout (499 fish) on July 13. This Afternoon's forecast: sunny, 44°F, 4% chance of precip.

Current conditions

Stocking

Last stocked Jul 13, 2026 — brook trout (499 fish).

DateSpeciesQuantityAvg length
Jul 13, 2026brook trout4992.93"
Jun 24, 2026rainbow trout50610.54"
May 26, 2026tiger trout (brown × brook hybrid)5049.67"
Jun 24, 2025rainbow trout50510.28"
Jun 23, 2025brook trout4982.97"
Jun 19, 2025tiger trout (brown × brook hybrid)51110.45"
Jul 16, 2024rainbow trout5029.83"
Jun 26, 2024tiger trout (brown × brook hybrid)5189.55"

Best time to fish Cook Lake — Boulder Mtn

The DWR has stocked Cook Lake — Boulder Mtn 18 times over the last 5 seasons, and 100% of those plants landed in May through July — the freshest fish and the easiest bite usually follow within a week or two of a stocking.

Species

brook troutrainbow trouttiger trout (brown × brook hybrid)

Location

38.17680, -111.54000 · Wayne County · 51 mi from Richfield

Nearby waters (within ~25 mi):

Miller Lake — Boulder Top NorthWayne CountyFairGrass Lake — Thousand Lake MtnWayne CountyFairChuck Lake — Boulder Top NorthGarfield CountyFairPine Creek Reservoir — Boulder Top NorthWayne CountyFairRaft Lake — Boulder Top NorthWayne CountyFairSurveyors Lake — Boulder Top NorthGarfield CountyFairSolitaire Lake — Boulder Mtn North SlopeWayne CountyFairLost Lake (Government) — Boulder Mtn North SlopeWayne CountyFair

Guides & shops for this water

Quiet Fly Fisher · shop + guides

From our independent directory — no booking relationship.

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
44°F
Sunny
Tonight
35°F
Partly Cloudy then Chance Light Rain
27% precip
Wednesday
42°F
Showers And Thunderstorms
94% precip
Wednesday Night
38°F
Showers And Thunderstorms
87% precip
Thursday
40°F
Showers And Thunderstorms
99% precip
Thursday Night
30°F
Slight Chance T-storms
94% precip
Friday
35°F
Chance Light Snow
26% precip
Friday Night
27°F
Slight Chance Light Snow then Partly Cloudy
20% precip
Saturday
33°F
Mostly Sunny then Slight Chance Light Snow
20% precip
Saturday Night
25°F
Partly Cloudy