Top 5 Utah Rivers Fishing This Week | June 2026

The Blacksmith Fork Canyon is currently flowing at 60 cfs (normal) with a stable trend. Flows are fishable today. The Verdict: Excellent Conditions This week’s forecast shows temperatures ranging from 66-84°F. Calm winds support dry fly presentations.

Insect Activity: Caddis are peaking on the Blacksmith Fork right now — expect consistent hatches all day in the size 14-18 range, with the best surface activity from late afternoon through dusk. Run a Caddis Larva (#16, olive/tan) or LaFontaine’s Sparkle Pupa (#16, green) below the surface during the day, then switch to an Elk Hair Caddis (#16, tan/brown) when you see fish rising. Golden stoneflies are also moving as the flow drops, so keep a Kaufmann’s Stone (#8, golden) in your nymph rig — fish were hammering them in the pockets early this week.

Where to Fish: At 60 cfs, the Blacksmith Fork is in textbook wading condition — clear, fishable, and easy on the ankles on the gravel bars. Work upstream through the canyon on the inside bends and focus on the deeper pockets behind mid-channel boulders, where Bonneville cutthroat and brown trout are stacking ahead of warming summer temps. A Stimulator (#14, yellow) as a dry indicator with a Caddis Larva dropper is the classic mid-canyon setup; don’t overlook the glassy tailouts below the deeper runs just before dark — that’s where you’ll find rising fish keying on emerging caddis.

Gear Tip: Start with a two-fly nymph rig and a yarn indicator early. Shift to dry fly or dry-dropper during hatch windows. A 9-foot 5X leader with light tippet keeps the rig natural in these flows.

Presentation: Start shallow, then add weight or depth as you move into deeper runs and pockets. Use longer drifts to cover tailouts and seam water.

Regulations: From the first highway bridge (at the mouth of the canyon) of State Road 101 (Blacksmith Fork Canyon Road) to the headwaters: Limit 1…

The Upper Logan River is currently flowing at 215 cfs (normal) with a falling trend. Flows are fishable today. The Verdict: Excellent Conditions This week’s forecast shows temperatures ranging from 63-81°F. Calm winds support dry fly presentations.

Insect Activity: Hydropsyche caddis are producing reliably on the Upper Logan from mid-morning through evening — stick to size 14-16 throughout and don’t overthink it. An Elk Hair Caddis (#14, tan) or X-Caddis (#16, olive) on top, with a Caddis Larva (#16, olive/tan) or Czech Nymph (Caddis Variant) #14 as a dropper, covers the hatch top-to-bottom. Golden stones are also showing in the shallows as runoff clears; a Soft Hackle Hare’s Ear (#14, natural) is your best crossover nymph right now. Note: the upper reach above Red Banks Campground is artificial flies and lures only, and it closes before the second Saturday in July — plan your trip accordingly.

Where to Fish: Running at 215 cfs the Logan is full but still within normal range — the inside bends and slower water on gravel bars are where the cutthroat and brook trout are holding while the current is still pushy. The canyon stretch offers deep seams along the canyon walls that concentrate fish when flows are elevated; wade the shallower edges and cast into the main current seams rather than fighting through the fast middle. Fish the foam lines through the runs and let your nymph swing through the tailout — cutthroat in particular will chase a swinging soft hackle when the current speed is right.

Gear Tip: Start with a two-fly nymph rig and a yarn indicator early. Shift to dry fly or dry-dropper during hatch windows. A 9-foot 5X leader with light tippet keeps the rig natural in these flows.

Presentation: Start shallow, then add weight or depth as you move into deeper runs and pockets. Use longer drifts to cover tailouts and seam water.

Regulations: Artificial flies & lures only

The Mammoth Creek – Hatch Valley is currently flowing at 19 cfs (normal) with a falling trend. Flows are fishable today. The Verdict: Excellent Conditions This week’s forecast shows temperatures ranging from 63-81°F. Calm winds make indicator nymphing more effective.

Insect Activity: Mammoth Creek is a small spring-fed freestone with subtle insect activity this time of year, but what it lacks in drama it makes up for in willing fish. Midges are your bread and butter throughout the day — Zebra Midge (#20, black/red) and Griffith’s Gnat (#20) fished under a small indicator work well in the slow pools. Caddis are beginning to appear in the riffles as well; an Elk Hair Caddis (#14, tan) or Chernobyl Ant (#12) as an attractor-dry in the mid-day slicks will bring up opportunistic browns. The afternoon thunderstorm window today (60-70% chance) may push the best surface feeding into the early morning — aim to be rigged up by 8 AM.

Where to Fish: At 19 cfs, Mammoth Creek is in its classic small-stream summer mode — intimate, brushy, and best approached on your knees. The undercut banks in the lower Hatch Valley section hold the largest browns, so fish them carefully with short upstream presentations and keep your profile low. The gentle riffle-to-pool transitions are easy to read: drop a Klinkhammer Special (#16, tan/olive) off the back of a Chernobyl Ant and work the head and mid-section of each pool. Skip the wide glassy pools between 11 AM and 2 PM — the fish lock up in the shadows; save those for first and last light.

Gear Tip: Start with a streamer rig in softer edges. Switch to a two-fly nymph rig and a yarn indicator as flows settle. A 9-foot 5X leader with light tippet keeps the rig natural in these flows.

Presentation: Start shallow, then add weight or depth as you move into deeper runs and pockets. Use longer drifts to cover tailouts and seam water.

Regulations: Standard UDWR fishing regulations apply. Valid fishing license required. See https://wildlife.utah.gov/fishing.

The Upper Provo River is currently flowing at 89 cfs (normal) with a falling trend. Flows are fishable today. The Verdict: Excellent Conditions This week’s forecast shows temperatures ranging from 58-76°F. Calm winds support dry fly presentations.

Insect Activity: Golden stoneflies are the headliner on the Upper Provo this week — the receding runoff has triggered an adult hatch and trout are looking up for the big bugs. Kaufmann’s Stone (#8, golden/brown) and Pat’s Rubber Legs (#10, yellow/brown) are producing consistently in the deeper runs, and a size-10 Stimulator (yellow/orange) on the surface has been drawing aggressive strikes from browns during the warmer midday window. San Juan Worm (#14, pink/red) is still a legitimate nymph choice in any water over knee-deep, where suspended sediment makes larger fly profiles more visible.

Where to Fish: At 89 cfs — a comfortable mid-range for this section — the Upper Provo is wadeable throughout on its characteristic cobble and gravel bars, though the slick streambed demands felt or studded soles. Focus on the faster riffle-to-run transitions where stonefly nymphs are drifting off the bottom; the fish are set up in the current seams just downstream of any flow acceleration. Remember: cutthroat and rainbow must be immediately released on this section, but the 2-brown limit under 15 inches gives you a nice afternoon challenge — target the slower, deeper runs below undercut banks where the larger browns prefer to hold.

Gear Tip: Start with a two-fly nymph rig and a yarn indicator early. Shift to dry fly or dry-dropper during hatch windows. A 9-foot 5X leader with light tippet keeps the rig natural in these flows.

Presentation: Start shallow, then add weight or depth as you move into deeper runs and pockets. Use longer drifts to cover tailouts and seam water.

Regulations: Artificial flies & lures only

The Rock Creek – Mountain Home is currently flowing at 57 cfs (normal) with a stable trend. Flows are fishable today. The Verdict: Excellent Conditions This week’s forecast shows temperatures ranging from 67-85°F. Calm winds make indicator nymphing more effective.

Insect Activity: Rock Creek at Uinta Mountain elevation is running a week or two behind the valley rivers on insect timing, but June is actually one of the better months here before the summer crowds arrive. Caddis are just starting to emerge in the riffles — LaFontaine’s Green Caddis Larva (#14, green/olive) below the surface and an Elk Hair Caddis (#14, tan/olive) on top covers the bases. The Stimulator (#10, yellow/orange) is the most reliable attractor pattern for remote Uinta freestones in June; pair it with a Hare’s Ear Nymph (#16, natural) dropper. Look for a golden stonefly push on the warmest afternoons — Kaufmann’s Stone (#8) worked under the cutbanks will find fish that aren’t looking up.

Where to Fish: At 57 cfs Rock Creek has some push to it — plan to wade the edges and fish across-and-down through the boulder gardens rather than trying to stand in the main current. The plunge pools below any cascade or log jam are the money water: brook trout and cutthroat stack directly below the foam in 2-4 feet of aerated water and strike quickly. The flat meadow sections between canyon pinches fish well with smaller dry-dropper rigs; short leaders and reach casts under the streamside willows are more effective than distance. Wind picks up from the WNW mid-week, so plan your morning sessions before 10 AM when the canyon stays sheltered.

Gear Tip: Start with a streamer rig in softer edges. Switch to a two-fly nymph rig and a yarn indicator as flows settle. A 9-foot 5X leader with light tippet keeps the rig natural in these flows.

Presentation: Start shallow, then add weight or depth as you move into deeper runs and pockets. Use longer drifts to cover tailouts and seam water.

Regulations: Standard UDWR fishing regulations apply. Valid fishing license required. See https://wildlife.utah.gov/fishing.