reservoir

Box Reservoir

Utah County · Central region

Fairconditions
59°todaySunny

Today’s report

Box Reservoir is a fair bet today. The DWR last stocked rainbow trout (800 fish) on July 8, 2025. This Afternoon's forecast: sunny, 59°F, 3% chance of precip.

Current conditions

Stocking

Last stocked Jul 8, 2025 — rainbow trout (800 fish).

DateSpeciesQuantityAvg length
Jul 8, 2025rainbow trout8009.87"
Jul 1, 2025rainbow trout7809.87"
Jun 3, 2025rainbow trout1,00810.32"
Jun 3, 2024rainbow trout50410.6"
Jun 3, 2024rainbow trout30510.6"
Jun 26, 2023rainbow trout1,7989.52"
Jun 21, 2022rainbow trout49511.16"
Jun 6, 2022rainbow trout49911.16"

Best time to fish Box Reservoir

The DWR has stocked Box Reservoir 8 times over the last 4 seasons, and 100% of those plants landed in June, July — the freshest fish and the easiest bite usually follow within a week or two of a stocking.

Species

rainbow trout

Location

40.55110, -109.27990 · Utah County · 15 mi from Vernal

Nearby waters (within ~25 mi):

Little Brush CreekUintah CountyFairRed Fleet ReservoirUintah CountyFairBrush CreekUintah CountyFairJones Hole CreekUintah CountyFairCrouse ReservoirUintah CountyFairSteinaker ReservoirUintah CountyFairMatt Warner ReservoirUintah CountyWarningAshley CreekUintah CountyGood

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
59°F
Sunny
Tonight
47°F
Partly Cloudy
Wednesday
59°F
Partly Sunny then Chance Rain Showers
30% precip
Wednesday Night
49°F
Chance Rain Showers
26% precip
Thursday
56°F
Showers And Thunderstorms
83% precip
Thursday Night
46°F
Showers And Thunderstorms
96% precip
Friday
52°F
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
70% precip
Friday Night
40°F
Chance Rain Showers
27% precip
Saturday
49°F
Mostly Sunny
Saturday Night
38°F
Partly Cloudy