Hatch Report — Week of July 25, 2026

South Platte — Above Spinney Hatch Report — July 25, 2026

July 25, 2026 hatch report for South Platte — Above Spinney: current flows, what's hatching, and what's working this week on the water.

By Renato Vanzella Posted Read 4 min
South Platte — Above Spinney · Live flow USGS PLASPICO
—cfs checking the gauge
South Platte — Above Spinney · Weather Open-Meteo · 38.99, -105.66
—° Checking the sky…

2 CFS: This Week Above Spinney Is Getting Tight

The gauge is reading 2 CFS right now—well below the typical low-water baseline of 15 CFS that normally marks genuinely productive conditions on a stream this size. That’s not a crisis, but it’s a real constraint, and it changes how you fish this water.

At 2 CFS, the Middle Fork above Spinney contracts hard. The meadow braids that normally spread across the flats tighten into fewer, narrower channels. Fish concentrate in whatever water will hold them—the deeper slots, undercut banks, and any shade they can find. The good news: they’re predictable. The bad news: they’re also highly visible to you, which means you’re equally visible to them. Wading becomes a precision exercise. Every footfall matters. Casts from distance matter even more.

Temperature is the second concern at this flow. With minimal water volume and full July sun on open meadow, the stream warms fast once the morning cool burns off. Fish welfare dictates a midday break or a shift to upper, shadier sections if you’re going to keep moving. Don’t assume because it’s Colorado headwater that the water stays cold; it doesn’t, not in July at 2 CFS, not in open country.

What’s Hatching Now—and How Small It Gets

July above Spinney is Trico season, PMD season, and caddis-and-terrestrial season rolled into one. Here’s the hierarchy as it plays out on this particular water:

Tricos (#20–24) own the early morning—roughly first light through 10 a.m. in the open meadow. The spinner fall is the real show. Fish rise to the dying adults, but the rise is quiet and selective. The trout are keyed to tiny, spent spinners on the water. A #24 Trico spinner (black or rusty) fished dead-drift in the film will work when the hatch is on. Don’t overthink it; just get a tiny pattern in front of feeding fish before the sun gets high.

PMDs (#16–18) persist through the month, especially in the afternoon and on cloudy stretches. Emergers and nymphs fish better than dries most days at this flow—the water is thin enough that trout see subsurface feeding as safer. A #18 PMD nymph or emerger, fished tight to the bottom in the defined slots, produces steadily.

Terrestrials and midges round out the picture. Ants and small hoppers (#14–16) work well on warm afternoons when there’s actual surface activity. Midges (#20–24) are the perennial fallback—black, zebra-stripe, Mercury patterns in emerger or nymph form. They work all day because they’re always present.

Caddis appear at dusk, but the low flow means evening rises here are usually modest and scattered. Focus on nymphal and larval patterns in the day; save the dry-fly enthusiasm for streams where the hatch is more pronounced.

The Rigging That Works at 2 CFS

This is where meadow freestone becomes its own puzzle.

For nymphs (your bread and butter this week):
Start with a tight-line or small-indicator setup. The water is shallow and clear—an indicator often does more harm than good by spooking fish, but tight-line work demands focus and feel. If you use an indicator, make it tiny (a small foam cylinder or yarn) set just 18–24 inches above the flies.

Run a two-fly rig: anchor fly (something slightly heavier and more visible—a #16 Barr’s-style nymph or a #18 pheasant-tail) on the point, and a dropper 12–18 inches above it. The dropper is where you experiment: a #20 PMD emerger, a #22 Trico nymph, or a #20 zebra midge. Add one split shot—just one—pinched onto the tippet between the two flies. At 2 CFS, more weight is a liability; you’ll snag constantly and lose touch with the bottom.

Use 4X or 5X tippet. At this flow and in clear water, fine tippet is worth the break-off risk. The trout can see thick tippet, and they’re already spooked by low water.

For dries (Tricos and terrestrials only):
Fish them long and from distance. A 9–10 foot leader tapered to 5X, with a #24 Trico spinner or a #14 hopper, cast well upstream and let it drift past without drag. At 2 CFS, the drift window is short and the current is slow—every inch of drag kills the take.

Where to Fish in This Meadow

Forget trying to cover water. Work the defined holding water instead.

The deeper slots—usually found where the channel tightens, especially where two braids converge—are the only water worth serious time right now. A fish will hold in the fastest, deepest 12 inches of the run instead of spreading across the flat. Walk the meadow looking for these slots. They’re obvious once the water is this thin.

Undercut banks and any vegetation overhang are magnets. Fish in 4–6 inches of water beside grass or a low willow are safer from predators and sun. Approach from below and cast up; don’t wade above them.

Spring seeps and cooler tributary inflows, if you can identify them, concentrate fish. Pay attention to where the water looks slightly greener or where trout are bunched. That’s usually cooler water.

Avoid the thin, open flats entirely. There’s nothing there at 2 CFS except spooky fish.

Access and Stewardship

Badger Basin is open right now, but check ahead for any seasonal closures related to spawning—they do apply here at certain points in the year, and low flow is precisely when the creek is most vulnerable. A valid Colorado fishing license or SWA pass is required. Artificial lures only in the Tomahawk section; respect that distinction if you’re planning to fish both areas.

At 2 CFS, every footprint matters. Wade slowly, deliberately, and as little as possible. Don’t wade through the holding water to reach somewhere else—work from your entry point outward. The trout are stressed by low water and heat; don’t compound that stress with unnecessary disturbance.

This week above Spinney requires patience and precision over casting volume. The fishing is there, but the water demands respect.

Tagged
hatch reportSouth PlatteAbove SpinneyBadger BasinColorado

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