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South Platte — Cheesman Canyon

Tailwater · Wigwam Club to DeckersGold MedalFishing Well
92

○ Live fetch unavailable — showing sample data

295 cfs
Flow
47°F
Water temp
39.209, -105.304
Location · USGS gauge
120–350
Ideal flow · cfs
Conditions · water 44–50°F

🎉 FLOWS BACK UP — risen over the past few days to ~295 cfs (SPFS 7/3) with improved water clarity after the heavy rains · dry-fly fishing improved · Tricos early AM, PMDs & caddis afternoons

Strategy

UPGRADED BACK — SPFS (7/3): flows have risen over the past few days to ~295 cfs and water clarity has improved after the heavy rains, which has improved the dry-fly fishing. Tricos prevalent in the early mornings; PMDs and caddis in the afternoons. Beyond matching the dry-fly hatches, nymph a girdle bug or stonefly trailed by a smaller mayfly nymph — smaller-diameter tippet and frequent depth adjustments are key. 5/6X fluorocarbon for nymphing; heavier split shot or larger tungsten point flies to get down in the bigger water. Today (Sun Jul 5) ~80°F canyon, mostly sunny — good all-day window on the cold release; scattered storms return Tue–Wed. Holiday-weekend crowds linger.

Detailed report

UPGRADED back to Fishing Well: SPFS current report — flows risen to ~295 cfs over the past few days with improved clarity following the heavy rains (the stained ~80-cfs dip is over as Cheesman tops off). Fishing has been pretty good this week and the dry-fly game has improved: Tricos early AM, PMDs and caddis in the afternoons. Nymph rig: girdle bug or stonefly + smaller mayfly nymph trailer, 5/6X fluoro, adjust depth frequently, heavier shot/tungsten to get down at these flows. Wading the canyon at ~295 takes care — pick crossings deliberately. Holiday weekend crowds — walk deeper into the canyon for solitude.

Report: South Platte Fly Shop / Rise Beyond Fly Fishing · July 3, 2026 (SPFS current) · South Platte Fly Shop staff + Rise Beyond

Fly-shop reports

1 shop report on South Platte — Cheesman Canyon

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

Trico #22-24 (early-summer transition), Top Secret Midge #22, Black Beauty #22–26, Zebra Midge #20–24, RS-2 #20–22

MiddayNOW
11am – 5pm

PMD emerger/dun #18, Sparkle Dun PMD #18, Caddis pupa/X-Caddis #16, JuJu Baetis #18, RS-2 #20

Evening
5pm – dark

Caddis dry #16, Griffith's Gnat #20–24, soft hackle swung through tailouts

Species
Rainbow · Brown · occasional Cutbow
USGS gauge 06700500

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 06700500 South Platte — Cheesman CanyonSample data — no live reading
Hatchwise Seasonal GuideHatch & fly guidanceJul 5, 12:00 PM MT · editorial
South Platte Fly Shop 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).