Lower Basin: Salida to Canon City (Bighorn Sheep Canyon)
Lower Basin / Bighorn Sheep Canyon — Fishing Report for April 27, 2026
Quick Stats
Flow: 353 CFS | Trend: Stable | Fishability: Prime | Weather: Mostly sunny, high 56°F; slight chance of afternoon thunderstorms
The Bite
Late April in Bighorn Sheep Canyon is one of those windows Colorado anglers circle on the calendar, and today delivers on that promise. Flows at Wellsville are sitting at 353 CFS — stable, clear, and well within the ideal range — and with snowpack across the basin running at just 11% of normal, there's little threat of the runoff surge that typically starts nudging flows toward 600+ by month's end. Expect this fishable window to hold longer than a typical April.
The BWO hatch is at peak intensity right now, but today's mostly sunny forecast will compress the emergence window. Rather than the broad, overcast-fueled hatches that pull fish up for hours, look for a tighter flurry of surface activity — likely between 1 and 3 PM as any cloud cover builds ahead of the afternoon storm chance. The real opportunity may come in the morning: midges should be active from 9 AM onward, and golden stonefly nymphs are moving through the boulder gardens and riffles all day. Keep an eye out for the first tan caddis bouncing off the water in the afternoon — the Mother's Day Caddis emergence typically begins its trickle in the last week of April, and the canyon often fires earlier than upstream sections.
What's NOT working right now: big, flashy streamers in clear low water tend to spook fish rather than trigger them. Save the heavy articulated patterns for when flows push higher. At 353 CFS, subtlety wins.
What to Fish
- Sparkle Dun BWO #18-20 — Point fly during the afternoon hatch window; let it ride the foam lines drag-free through the tailouts
- Juju Baetis #18-20 — Dropper 16" below a Parachute Adams or CDC Caddis dry; covers both levels during the BWO transition
- Pat's Rubber Legs #8-10 — Anchor fly for a two-nymph morning rig; fish it deep through the boulder gardens and ledge pools
- CDC Pheasant Tail #16-18 — Trailing nymph 14" behind the Pat's; natural presentation through slower seams
- Elk Hair Caddis #14-16 — Worth having tied on by mid-afternoon to prospect for early Mother's Day Caddis activity
- Midge Cluster or Griffith's Gnat #20-22 — Morning option before the BWO window opens
Tactics & Rigging
Start the morning with a two-nymph rig: Pat's Rubber Legs on point with a CDC Pheasant Tail or Perdigon trailing 14" above. Use 4X fluorocarbon to the anchor and 5X to the dropper. At 353 CFS the water is approachable — wade into position on the soft edges of the main runs and work the seams along the rock ledges and gravel bar drop-offs. Add enough split shot to tick the bottom; you want contact, not drag.
As the afternoon hatch window approaches, switch to a dry-dropper: Parachute Adams #16 on top with a Juju Baetis or RS2 #20 dropped 16" below on 5X or 6X fluorocarbon. If fish start rising consistently and ignoring the dropper, pull it off and go straight to a Sparkle Dun or CDC Emerger on 6X. Position yourself downstream of rising fish and present upstream with a reach cast — these canyon browns have seen pressure and will refuse a dragging fly without hesitation.
Access & Logistics
The Rincon and Cotopaxi stretches are the prime targets for the early caddis action. Multiple pull-offs along US-50 provide easy access to the canyon. Weekday pressure is moderate — you'll have room to work. Note that from Stockyard Bridge to Badger Creek, it's artificial flies and lures only with mandatory rainbow trout release; verify current regulations with CPW before fishing, as boundaries and rules can change.
Stop by ArkAnglers or Salida Fly Shop for flies, local intel, and to support the shops that keep these fisheries healthy.
Looking Ahead
The 3-day forecast brings overnight lows near 33°F and a mix of sun and afternoon shower chances through Wednesday — classic BWO weather in the making, especially if cloud cover lingers into the midday hours Tuesday and Wednesday. With snowpack at historic lows, don't expect a significant runoff spike; flows should remain in the prime range well into May, extending what's shaping up to be an exceptional dry-fly season in the canyon.