It flows into Norbury Creek 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 4 km. Westslope Cutthroat Trout, Rainbow Trout, recorded here in provincial fish-inventory data.
The fishing
As a small stream, a tributary of Norbury Creek, Sunken 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
~4 km
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Westslope cutthroat and Rainbow
recorded
footprint
Wade / Technical
Conditions
Navigability:wade / technical: steep gradient, pocket water (median channel width ~4.4 m, narrow; median gradient ~16.36%, very steep; peak mean-annual discharge ~0.286 m³/s, very low flow).
Access & the rules
Access for Sunken 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 Norbury Creek system.. Official synopsis: gov.bc.ca fishing regulations.
