Utah · freestone

Blacksmith Fork

12 miles

Difficulty: Intermediate
Access: Wade
Season: May–Jun, Sep–Oct
Fish: Brown Trout,Rainbow Trout

Flies fishing now

October on the hatch chart — names and sizes, not a catch report.

Blue-winged Olive#18-22BWO Sparkle Dun

Hatch chart

Filled months are when that insect is on the chart. Best months for this river are lit.

Sparse
Moderate
Heavy

Swipe months to stay on the year

Insect	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Midge (Chironomidae)
Blue-winged Olive
Caddis
Pale Morning Dun
Ant (Terrestrial)
Grasshopper (Terrestrial)

Best flies for Blacksmith Fork

Hatch-chart nymphs, dries, and streamers for this river. Not a crowdsourced catch report.

Open the Blacksmith Fork fly list →

Access points

1 listed points. Map is Vellum land and Teal water — a desk chart, not a satellite.

Map loading…

Blacksmith Fork above Porcupine Reservoir, near Hyrum (USGS 10113500)

Live USGS gauge Blacksmith Fork above Porcupine Reservoir, near Hyrum, UT. Official NWIS: 41.62400556, -111.7361639.

41.6240, -111.7362Parking available

Regulations

Utah fishing license required. Verify current Utah Division of Wildlife Resources regulations for Blacksmith Fork before fishing. Much of the canyon is a mix of Uinta-Wasatch-Cache National Forest and private land; respect posted property.

Verify with Utah Division of Wildlife Resources. Retrieved 2026-08-31. Seasons and gear rules change.

On this river

Fly shops

Anglers Den

5348 S 1900 W Suite A1, Roy, UT 84067

Basin Fly Shop

Vernal, UT

Fish Heads Fly Shop

Heber City, UT 84032

Fish Tech Outfitters

6153 S Highland Dr, Salt Lake City, UT 84121

Read the river overview

Blacksmith Fork runs through Blacksmith Fork Canyon in Cache County, one of northern Utah's well-known small trout streams, upstream of Porcupine Reservoir near Hyrum. Highway 101 follows the canyon, giving roadside access to most of the fishable water.

Brown and rainbow trout hold in pocket water and short runs through this limestone canyon. The stream stays cold through summer on spring and snowmelt inflow from the Bear River Range.

A USGS gauge above Porcupine Reservoir tracks flow through the canyon.