Idaho Creek is an official Kootenay Land District creek that drains into the west shore of Duncan Lake, the reservoir behind Duncan Dam on the Duncan River system, north of Howser.
The water
NRCan's Geographical Names registry places Idaho Creek's mouth at 50.534167, -117.001389 (key JABSS). It runs stream order 3 (low on a scale from 1 for a headwater trickle up to 6 or more for a full river) and stretches roughly 3 km down to the reservoir. Provincial fish-inventory data carries no direct records on the named creek line, unlike its close neighbours Cockle Creek (kokanee and slimy sculpin) and Gerrard Creek (rainbow trout) elsewhere in the Duncan system.
The fishing
With no direct fish observations, no creek-specific guide coverage and no fishing or hatch reports turned up, there is nothing here to recommend as a destination yet. Reel Adventures Fishing Charters covers Duncan Lake at the lake and charter level, not this creek. Idaho sits in the same reservoir-edge watershed context as Pat Creek next door, best treated as mapping and stewardship water until a direct survey or field report says otherwise.
Documented food and forage specific to Idaho Creek has not been logged. General Duncan Reservoir-edge tributary food, shared with nearby Cockle Creek and Pat Creek, typically runs to Stoneflies, Caddisflies (Sedges), Mayflies, midges, Terrestrials (Hoppers, Ants, Beetles) and connected-basin fry or Sculpin where habitat allows. Where legal and away from any spawning fish, that points to small-stream attractors like Elk Hair Caddis, Adams, Royal Wulff and Stimulator, nymphs such as Prince, Hare's Ear and Pheasant Tail, and a sparse Woolly Bugger or fry/sculpin streamer.
Riparian monitoring on the reservoir margin
Conditions
- Navigability: narrow and very steep (median width ~2.6 m, narrow; gradient ~34.75%, very steep; peak mean-annual discharge ~0.155 m³/s, very low flow), consistent with a small, fast headwater tributary rather than a fishable drift.
- Stocking: no stocking record. Any fish present would be wild or reservoir-connected.
Access and the rules
No public road, trail or parking has been confirmed for Idaho Creek. The one documented access point, BC Hydro's monitoring transect near the mouth, is reachable only by boat across Duncan Lake.

