No individual Irene Creek entry or in-season correction turned up in the checked Region 4 synopsis. Handle it as an upper Duncan Lake tributary regulation-check water, and do not assume Duncan River mainstem exemptions, quotas or bait wording apply until the official table or a regional office confirms it.

Irene Creek sits at 50.666667, -117.058056 in the Kootenay Land District, a coordinate distinct from an unrelated Ontario creek of the same name. The local waterway index infers it at roughly 4 km long and stream order 3 (early-to-mid on the 1-to-6+ scale where 1 is a headwater trickle and 6+ is a full river), consistent with a small tributary rather than a mainstem water. It sits in the wider upper Duncan / Duncan Reservoir drainage, an area the local model flags with a 19-species inferred watershed taxa list and a sensitive-habitat marker, but that watershed-scale signal is context, not a record of fish actually caught or surveyed in Irene Creek itself.

No public fishery report, hatch report, current access note or creek-specific guide coverage turned up for Irene Creek. Reel Adventures Fishing Charters covers Duncan Lake at the lake and charter level, but nothing at the tributary level. Given that, treat Irene Creek as a regulation-check and field-scout water rather than a destination to plan a trip around.

If it fishes at all, expect small, cold tributary water: stoneflies, caddisflies and mayflies, midges and terrestrials are the forage families that show up across the upper Duncan basin generally, with connected-basin fry or sculpin where habitat allows. None of that is hatch data specific to Irene Creek, so read it as a starting point, not a calendar. Where legal and away from redds or staging fish, a small-stream attractor and nymph kit covers it: Elk Hair Caddis, Adams, Royal Wulff and Stimulator on top, Prince, Hare's Ear and Pheasant Tail underneath, with a small Woolly Bugger or sparse fry/sculpin streamer for deeper pockets.

No named trailhead, pull-off or put-in was confirmed for Irene Creek. Treat any approach as reconnaissance until a road, trail or parking area is verified locally.