South Platte — Waterton Canyon
● Live flow from USGS · water temp from sample (no temp sensor at this gauge)
~68 cfs (Rise Beyond June podcast: 'holding steady around 68 cfs—prime for technical drifts and clear-water stalking') · canyon fully reopened · BWO/midge subsurface still dominant, caddis + yellow sallies emerging
Closest quality water to Brighton. Easy hike-in (or bike — 3.3 mi to Marston Diversion). Per Rise Beyond June: flows up to ~68 cfs, 'prime for technical drifts and clear-water stalking.' BWOs and small midges still dominating subsurface, caddis and yellow sallies emerging, trico season nearly here. Late morning through early afternoon best window. Trailer pupae/emergers behind a searcher nymph. Today (Sun Jul 5) ~91°F plains, sunny and hot — fish morning through midday before canyon shade returns ~3 PM; scattered storms Tue–Wed.
Canyon reopened after Denver Water's dust-mitigation closure (April 27–May 8). Rise Beyond June podcast: 'flows holding steady around 68 cfs — prime for technical drifts and clear-water stalking.' June hatch activity: midges + BWOs still dominating subsurface, caddis and yellow sallies emerging, trico season nearly here. Recommended: Parachute BWO #20-22 for late morning risers, RS2 + Zebra Midge combo #20-24 deep seams, Mini Leech/Thin Mint streamer in low light. 5X lead, 6X dropper. Trail fully dried. Bite shuts down once canyon shadows return ~3 PM. Pattern: today (Sun Jul 5) ~91°F plains, sunny and hot; scattered storms Tue–Wed, heat rebuilds late week. Strontia Springs construction traffic ongoing.
Fly-shop reports
1 shop report on South Platte — Waterton 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 73 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
Pat's Rubber Legs (anchor) + RS-2 #20, Pheasant Tail #18, Black Beauty #22, Guide's Choice Hare's Ear
Caddis pupa #16, Barr's Emerger #20, San Juan Worm #14, Rainbow Warrior #18, Copper John, Psycho Prince Nymph
Adams #18, midge cluster #20, JuJu PMD #18, soft hackle swing
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 06709500 | South Platte — Waterton Canyon | Jun 2, 11:00 PM MT · flow live |
| Hatchwise Seasonal Guide | Hatch & fly guidance | Jul 5, 12:00 PM MT · editorial |
| Rise Beyond Fly Fishing | 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).