lake

Grass Lake — Boulder Mtn

Garfield County · Southern region

Fairconditions
58°todaySunny

Today’s report

Grass Lake — Boulder Mtn is a fair bet today. The DWR last stocked brook trout (76 fish) on August 4. Today's forecast: sunny, 58°F, 8% chance of precip.

Current conditions

Stocking

Last stocked Aug 4, 2026 — brook trout (76 fish).

DateSpeciesQuantityAvg length
Aug 4, 2026brook trout763.1"
Jul 13, 2026brook trout1492.93"
Jun 23, 2025brook trout1532.97"
Jun 25, 2024brook trout1522.62"
Jul 10, 2023brook trout1482.57"
Jul 7, 2022brook trout1552.96"
Sep 20, 2021cutthroat trout2002.32"
Jul 6, 2021brook trout1552.76"

Best time to fish Grass Lake — Boulder Mtn

The DWR has stocked Grass Lake — Boulder Mtn 8 times over the last 4 seasons, and 88% of those plants landed in June through August — the freshest fish and the easiest bite usually follow within a week or two of a stocking.

Species

brook trout

Location

38.05620, -111.43900 · Garfield County · 57 mi from Panguitch

Nearby waters (within ~25 mi):

Ledge Lake — Boulder Top SouthGarfield CountyFairHalf Moon Lake — Boulder Top SouthGarfield CountyFairEast Lake — Boulder Top SouthGarfield CountyFairHorseshoe Lake — Boulder Top SouthGarfield CountyFairCrescent Lake — Boulder Top SouthGarfield CountyFairCrater Lake — Boulder Top SouthGarfield CountyFairRim Lake — Boulder Top SouthGarfield CountyFairSpectacle Lake — Boulder Top SouthGarfield 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

Today
58°F
Sunny
Tonight
41°F
Mostly Clear
Friday
57°F
Mostly Sunny
Friday Night
41°F
Partly Cloudy
Saturday
50°F
Showers And Thunderstorms Likely
71% precip
Saturday Night
38°F
Showers And Thunderstorms
88% precip
Sunday
43°F
Showers And Thunderstorms
99% precip
Sunday Night
37°F
Showers And Thunderstorms
92% precip
Columbus Day
43°F
Rain Showers Likely
71% precip
Monday Night
33°F
Chance Rain Showers then Chance Rain And Snow Showers
46% precip