lake

Cook Lake — Boulder Mtn

Wayne County · Southern region

Fairconditions
46°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, 46°F.

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
46°F
Sunny
Tonight
29°F
Mostly Cloudy
Sunday
40°F
Partly Sunny then Slight Chance Rain And Snow
17% precip
Sunday Night
30°F
Partly Cloudy
Monday
41°F
Partly Sunny then Slight Chance Light Rain
24% precip
Monday Night
31°F
Slight Chance Rain And Snow
16% precip
Tuesday
40°F
Chance Rain And Snow
39% precip
Tuesday Night
31°F
Slight Chance Light Snow then Slight Chance Light Rain
21% precip
Wednesday
39°F
Chance Rain And Snow then Chance Showers And Thunderstorms
53% precip
Wednesday Night
35°F
Showers And Thunderstorms then Light Rain
83% precip