South Platte — Eleven Mile Canyon
● Live flow from USGS · water temp from sample (no temp sensor at this gauge)
~103 cfs (SPFS late-June: 'low for this time of year' — Antero draw-down complete) · canyon continues to fish well — a bug factory · midges, BWOs, Tricos, PMDs, caddis; sight-fishing the play, stop once water hits 68°F
SPFS site still dated 4/27 (most recent on site as of 6/4): 11-Mile flows bumped to the 300+ cfs range (SPFS Jun, similar to Cheesman/Deckers on the heat-driven melt/releases). Canyon continues to fish well. With Dream Stream and Deckers flows being sporadic, crowds at 11-Mile remain elevated, especially weekends — weekday windows the play. Sparkle dun, EHC, Para Adams or extended-body BWO up top with sprout midge, Matt's midge, Griffith's, mole fly dropper. Today (Wed) ~78°F South Park, mild and pleasant, the real heat building toward midweek; the real heat building toward midweek.
FLOW CORRECTED to ~103 cfs (SPFS late-June: 'low for this time of year'; Antero draw-down complete) — down from the reservoir-release weeks but still fishing well as a bug factory. Strong dry-fly: midges, BWOs, Tricos, PMDs, caddis; sight-fishing; fish the lower 'baitwater' canyon to dodge crowds; stop once water hits 68°F. Weekend pressure heavy, weekday windows the play. South Park pattern: today (Wed) ~69°F, partly sunny with afternoon thunderstorms; storms ease and temps warm into midweek.
Fly-shop reports
2 shops report on South Platte — Eleven Mile CanyonReports 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 57 is built. Flow 35% · Water temp 25% · Weather 20% · Hatch 20%.
Weather & hatch are placeholder factors until wired to live sources.
What to throw — by time of day
Small midge larva #20–22, Baetis nymph #20, scuds #16–18, San Juan Worm, cranefly larva
Caddis larva #18 (caddis active), BWO emerger #20, eggs (where browns spawned), small stonefly #14
Adams #20, BWO #20–22, Griffith's Gnat #20, small Elk Hair Caddis #16
Seasonal hatch report
Fall — BWOs & Streamers
Cooling water wakes the fish up. Blue-Winged Olives return on grey afternoons, and pre-spawn browns chase streamers hard.
Sources & last updated
| Source | Feeds | Most recent update |
|---|---|---|
| USGS 06701700 | South Platte — Eleven Mile Canyon | Oct 1, 1:15 AM MT · flow live |
| Hatchwise Seasonal Guide | Hatch & fly guidance | Jul 5, 12:00 PM MT · editorial |
| South Platte Fly Shop | Shop fly report | Live — see report |
| Anglers Covey | Shop fly report | Live — see report |
Live flow & water temp come straight from the USGS Instantaneous Values service; timestamps are the gauge's own reading times (Mountain Time).