No individual Kilmarnock Creek entry appears in the Region 4 synopsis. Kilmarnock sits in the upper Fording River drainage, upstream of Josephine Falls, where Fording River Classified Water (4-23) is listed as No Fishing. Treat Kilmarnock as closed until the exact boundary and how it applies to this tributary are confirmed with the current synopsis or Region 4 staff.

NRCan lists Kilmarnock Creek as an official Kootenay Land District water (key JAHAZ) at 50.162778, -114.870556, joining the fording river high in the upper valley. Teck's Fording River Extension Project alternatives materials place the creek on the Castle Mountain side of Fording River Operations, noting existing waste-rock storage already in the Kilmarnock drainage and project alternatives where Eagle Pit water would be routed into Kilmarnock Creek. Upper-Fording cutthroat monitoring work treats the whole basin above Josephine Falls as mine-influenced, genetically isolated and conservation-sensitive, and ties Kilmarnock specifically to spawning-tributary and remnant-population context, one more reason to read this creek as habitat first.

A provincial fish survey recorded 9 direct westslope cutthroat trout observations on one Kilmarnock named line, the confirmed signal for the creek. Brook trout, bull trout and generic cutthroat appear in the broader Fording / Line Creek species model, but those are context taxa, not confirmed Kilmarnock catches, so treat the fishery as cutthroat-only until further survey says otherwise. No creek-specific guide coverage exists: elk river guiding company publishes the fording river mainstem downstream, not this child creek.

No public trailhead, road or put-in has been confirmed for Kilmarnock Creek. Approach roads run through active Fording River Operations coal-mine country on the Castle Mountain side of the watershed, so treat any approach as a private-land and industrial-road access check first, not an assumption from a map. Until both the closure boundary and physical access are confirmed, treat Kilmarnock as a regulation-and-access check rather than a place to plan a day around.