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North Fork South Platte

Freestone · Bailey to confluenceClass 2Fishing Well
92

○ Live fetch unavailable — showing sample data

140 cfs
Flow
44°F
Water temp
39.409, -105.170
Location · USGS gauge
90–220
Ideal flow · cfs
Conditions · water 42–46°F

~140 cfs at Bailey (Pat Dorsey, 6/24: 'flows perfect, ice cold') — natural snowmelt flows declining, Roberts Tunnel not yet on (Denver Water expects 200–250 cfs outflows once it turns on this summer) · fishing excellent

Strategy

UPGRADED — Pat Dorsey (revised 6/24): ~140 cfs at Bailey, 'flows perfect, ice cold, fishing excellent.' Fish seams, inside bends and softer pocket water; controlled drifts through walking-speed water. Egg patterns, San Juan Worms and flashy nymphs are producing; dries (black gnats, midge clusters, Chubby Chernobyl, Amy's Ant) and dry-dropper in the skinny water. Pine Valley Ranch, Shawnee Bridge, Grant Area all 4★; Bailey stretch 5★ locals rating. Today (Sun Jul 5) ~76°F, mostly sunny — solid all-day window; scattered storms return Tue–Wed.

Detailed report

UPGRADED to Fishing Well: Pat Dorsey's North Fork report (revised 6/24/26) calls it 'fishing excellent — flows perfect' at ~140 cfs at Bailey, ice cold. The pre-runoff window is effectively over — natural flows are declining and Denver Water expects 200–250 cfs Roberts Tunnel outflows once the tunnel turns on this summer. Egg patterns, San Juan Worms and flashy nymphs; dries (black gnats, midge clusters, Chubby Chernobyl, Amy's Ant); dry-dropper in skinny water. Bailey stretch 5-star locals rating. NRCS 2026: S. Platte basin record-low snowpack year, runoff well below median. Weekday pattern: today (Wed) ~69–76°F, afternoon thunderstorms, then warming midweek.

Report: Pat Dorsey Fly Fishing / Blue Quill Angler · June 24, 2026 (Dorsey, revised) · Pat Dorsey + Blue Quill Angler

Fly-shop reports

1 shop report on North Fork South Platte

Reports are pulled live from each shop when you open this river. Shop wording varies — tap through for the full, original report.

Fishability Score breakdown

How today's 92 is built. Flow 35% · Water temp 25% · Weather 20% · Hatch 20%.

Flow100/100
Water temp100/100
Weather76/100
Hatch match82/100

Weather & hatch are placeholder factors until wired to live sources.

What to throw — by time of day

Morning
Dawn – 11am

Tungsten Pheasant Tail #18, Perdigon #18, midge larva #20, Black Beauty #22, San Juan Worm #14

MiddayNOW
11am – 5pm

BWO emerger #18–20, dry Parachute Adams #18, dry-dropper rig, sculpin streamer slow-twitched

Evening
5pm – dark

Stimulator #14 (early caddis), Adams #16, soft hackle swing

Species
Brown · Rainbow
USGS gauge 06707500

Seasonal hatch report

In season now

Fall — BWOs & Streamers

Cooling water wakes the fish up. Blue-Winged Olives return on grey afternoons, and pre-spawn browns chase streamers hard.

Morning
Dawn – 11am
Hatching
Midges · BWO nymphs · Trico (early fall)
Flies
Pheasant Tail #18, RS-2 #20, Trico spinner #24
Rig
Nymph deep; streamer the banks early for aggressive browns.
Afternoon
NOW
11am – 5pm
Hatching
Blue-Winged Olives · October caddis (freestone)
Flies
BWO dun #20-22, Parachute Adams #20, October Caddis #10
Rig
Overcast = dry BWOs; otherwise swing/strip streamers for browns.
Evening
5pm – dark
Hatching
BWO spinners · Streamer window
Flies
Sculpin/Woolly Bugger #6-8, RS-2 #20
Rig
Strip big flies through frog water at last light for the biggest fish.
Source: Hatchwise Seasonal Guide · updated Jul 5, 12:00 PM MT. General seasonal patterns — verify against a current local shop report before you go.

Sources & last updated

SourceFeedsMost recent update
USGS 06707500 North Fork South PlatteSample data — no live reading
Hatchwise Seasonal GuideHatch & fly guidanceJul 5, 12:00 PM MT · editorial
Pat Dorsey Fly Fishing Shop fly reportLive — see report

Live flow & water temp come straight from the USGS Instantaneous Values service; timestamps are the gauge's own reading times (Mountain Time).