Cockle Creek is an official Kootenay Land District creek that drains straight into Duncan Lake, the reservoir behind Duncan Dam on the Duncan River system, north of Howser.
The water
NRCan's Geographical Names registry places Cockle Creek's mouth at 50.567222, -117.005278 (key JASFI). It runs stream order 4 (mid-range on a scale from 1 for a headwater trickle up to 6 or more for a full river) and stretches roughly 7 km down to the reservoir. Provincial fish-inventory data carries four direct records here: two Kokanee and two slimy sculpin, the strongest direct signal of any creek in this Upper Duncan cluster alongside Hall Creek, Bennison Creek and Laughton Creek, which carry no direct records at all.
The fishing
Those four records read like reservoir-edge forage and possible seasonal concentration water rather than proof of an open, practical creek fishery. No fishing guide lists Cockle Creek specifically; Reel Adventures Fishing Charters covers Duncan Lake at the lake and charter level, not this creek. No hatch report or fishing log for the creek itself turned up either.
Documented food and forage here is Kokanee and Sculpin. Duncan Reservoir itself adds zooplankton and mysid shrimp as kokanee food, plus Chironomids (Midges), Leeches and shoreline Terrestrials (Hoppers, Ants, Beetles), and fry where the creek connects through to the reservoir. Where legal and away from spawning fish, that points to small sculpin and fry streamers, a sparse Woolly Bugger or Balanced Leech, chironomid patterns fished near still or soft margins, and general small-stream nymphs and dries: Prince, Hare's Ear, Pheasant Tail, Elk Hair Caddis, Adams and Stimulator.
Reservoir drawdown and spawning gravel
Conditions
- Navigability: narrow and steep (median width ~5.7 m, narrow; gradient ~19.27%, very steep; peak mean-annual discharge ~1.063 m³/s, low flow). Wade only, consistent with a small, fast tributary rather than a fishable drift.
- Stocking: no stocking record. Any fish present are wild or reservoir-connected.
Access and the rules
No public access point, road, trail or parking has been confirmed for Cockle Creek. A log boom sits near the creek mouth on Duncan Reservoir's north end and catches much of the debris carried down from the larger creeks feeding the reservoir, so expect reservoir-debris and boom infrastructure around this stretch of shoreline.
