Mobbs Creek drains off the Goat Range into the Lardeau side of the Duncan River system, between Trout Lake and Kootenay Lake. Its mouth marks the downstream boundary of the last spawning reach for Kootenay Lake's Gerrard rainbow trout, which makes this small creek an outsized piece of regional fisheries management even though it rarely turns up in fishing reports.
The water
Mobbs Creek carries an official name in the Kootenay Land District (key JALBJ, decided 1924-03-31) at 50.508611, -117.269444. It runs stream order 5, well down the network toward river scale on a system that runs from 1 for a headwater trickle up to 6 or more for a full river, stretches roughly 21 km, and carries 48 direct fish records in provincial inventory data, a real signal for a Lardeau-side tributary. Provincial Gerrard rainbow literature describes the remaining stock's spawning ground as the short upper Lardeau River reach between the outlet of Trout Lake and this creek's confluence, making the Mobbs mouth the hard downstream edge of protected spawning water.
The fishing
Rainbow trout carry the local signal here (16 records), backed by Sculpin (7), bull trout (7), Kokanee (7), Burbot (5), mountain whitefish (2), redside shiner (2) and westslope cutthroat (2). Biologists list Mobbs Creek among the Lardeau tributaries recommended for future bull trout reconnaissance, and the province used a pilot netting site here in 2023 as part of a Gerrard reduction program managing the spawning run migrating past this stretch. That combination of a real fish population and active spawning-run management at the creek mouth makes Mobbs conservation-sensitive water first and a fishing beat second.
Food here is small, cold-creek fare: kokanee fry, Sculpin, redside shiners, small whitefish, Mayflies, Caddisflies (Sedges), Stoneflies and Terrestrials (Hoppers, Ants, Beetles). Where it is legal and away from redds or staging fish, work a dry/dropper rig, an Elk Hair Caddis, Adams or Stimulator up top over a Prince Nymph, Hare's Ear or Pheasant Tail, with a small Woolly Bugger or a smaller-profile Dolly Llama to imitate sculpin and fry. Skip egg patterns and streamer pressure around visible spawning activity.
Fish it with the spawning water in mind
Access and the rules
Mobbs Creek sits inside a Goat Range Park wilderness recreation zone, where the management priority is conserving the natural environment while allowing limited backcountry use, and where the plan calls for restoring previously logged forest in the drainage. A roughly 2 km, easy-grade trail runs from the Gerrard campsite to a narrow canyon on the creek; the old mine trail beyond that has mostly disappeared under snow and debris slides, a recurring hazard in this drainage that also affects water clarity. Confirm current trail condition, land status and slide risk before treating this as fishing access. No Mobbs Creek-specific guiding has turned up; the nearest coverage is Columbia River Adventures' Lower Duncan River bull trout charters, which is a different water.
Before you fish
Conditions
- Navigability: wade water through a narrow canyon reach (median width ~13.2 m, wide for a Lardeau-side tributary; median gradient ~3.94%, moderate; peak mean-annual discharge ~3.768 m³/s, low flow), a bigger channel than most nearby creeks but still fished entirely on foot.
- Stocking: no stocking record. Mobbs Creek runs on wild fish only.
