A creek in the St. Mary River watershed, a tributary of Lussier River, holding Dolly Varden, Kokanee and Westslope (Yellowstone) Cutthroat Trout in provincial fish-inventory records.
Diorite Creek is a tributary creek flowing into Lussier River. Recorded fish: Dolly Varden, Kokanee, Westslope (Yellowstone) Cutthroat Trout.
The water
It flows into Lussier River within the St. Mary River watershed (St. Mary River → Kootenay River). It runs stream order 4 (mid-range in the network; the scale runs from 1 for a headwater trickle to 6+ for a river) and roughly 23 km. Dolly Varden, Kokanee, Westslope (Yellowstone) Cutthroat Trout, recorded here in provincial fish-inventory data (18 records). The fish-passage model expects Bull Trout here too, since the reach is reachable with no barrier between, though there is no direct record yet.
The fishing
As a small stream, a tributary of Lussier River, Diorite Creek fishes the way creeks of its size do: short drifts with a buoyant attractor dry over a light dropper, working the pocket water and the heads of pools. Match the fly box to the season and confirm against a current local report.
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Tributary Creek
St. Mary River watershed
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Stream order 4
~23 km
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Dolly Varden and Kokanee
18 records
footprint
Mixed
Conditions
Navigability: mixed, confirm access and flow before choosing drift vs wade (median channel width ~6.4 m, moderate width; median gradient ~3.94%, moderate; peak mean-annual discharge ~0.89 m³/s, very low flow).
Access & the rules
Access for Diorite Creek, meaning the roads in, put-ins and any walk-in or seasonal limits, is worth confirming locally before you commit a day. The drainage map shows how the water sits in its valley.
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Before you fish
Confirm the current BC freshwater fishing regulations (Region 4 – Kootenay) before you go This water is part of the Lussier River system.. Official synopsis: gov.bc.ca fishing regulations.
