No Miller Creek-specific exception appears in the checked Region 4 extraction, so the regional stream defaults apply: closed April 1 to June 14, trout and char catch-and-release November 1 to March 31, and a single barbless hook required in all streams, year round. Kokanee carry a 15-fish daily quota with none allowed from streams and at most 5 over 30 cm province-wide, so check whether that stream restriction closes Miller Creek kokanee outright before keeping any. Confirm the current synopsis before fishing.

The creek runs about 8 km at stream order 4 (mid-range on the network, on a scale that runs from 1 for a headwater trickle up to 6 or more for a full river) before joining Phillipps Creek, which in turn drains to the Kootenay River. Provincial fish-inventory data carries just two records here, both kokanee. Westslope cutthroat and bull trout show up in the wider Bull River tributary model as connected network signal, but neither has a direct local catch record on Miller Creek itself.

With only kokanee confirmed and no guide coverage or fishing reports, Miller Creek reads more like connected habitat than a classic dry-fly destination. Kokanee in a small tributary like this are most likely present as spawners moving up from the larger system, so a kokanee encounter here is plausible seasonally rather than a year-round fishery. If cutthroat or bull trout are present, following the network signal, they would fish the same small-stream program as the rest of the Phillipps and Bull River drainage: attractor dries and searching nymphs sized down for a tight, wadeable channel.

Expect the standard East Kootenay small-stream calendar: caddis and mayflies through summer, smaller summer stoneflies, baitfish and fry where kokanee are present, and late-season terrestrials (ants, beetles, hoppers). If trout are present alongside the kokanee, round out the box with an Adams, Elk Hair Caddis, Hare's Ear, Prince Nymph and a small, sparse streamer for any staging kokanee-forage predators.

No named trailhead, road or put-in has been confirmed for this reach. It sits in the Phillipps Creek drainage of the Bull River watershed; if you are moving through that country, treat a Miller Creek stop as a scouting exercise rather than a planned destination.