No Dunbar Creek-specific exception appears in the Region 4 synopsis, so regional defaults apply: closed to fishing Apr 1 to Jun 14, trout and char catch-and-release from Nov 1 to Mar 31, and a single barbless hook required all year. Confirm the current synopsis and any in-season notices before fishing.

The creek is fed by Purcell Range glaciers and alpine lakes, with plateau wetlands and lake outlets doing much of the rearing and spawning work before the water narrows into a canyon just above the Templeton confluence. A falls isolates Dunbar from the Templeton mainstem, so the fish here are better read as resident or lake-and-tributary-connected populations rather than fresh runs up from the Columbia. It runs stream order 4 (mid-range in the network, on a scale that runs from 1 for a headwater trickle up to 6 or more for a full river), with a median channel width around 9 m (narrow) and a gradient around 2.85% (moderate), consistent with a canyon-bound mountain tributary rather than open drift water. Survey crews also flagged fisheries-sensitive zones within the Dunbar system and recommended higher-flow resampling on some of its low-flow tributary reaches, a sign this is a delicate, lightly buffered watershed rather than a high-volume stream.

Reach 3 produced the strongest inventory catch on the creek, a mix of rainbow trout, westslope cutthroat and brook trout, while reach 1 holds some of the best kokanee spawning gravel found in the survey. The child water outlet creek, between Big Fish Lake and Dunbar's reach 6, was named excellent rearing and spawning habitat for westslope cutthroat trout. No source ties a guide specifically to Dunbar Creek; Kootenay Troutfitters is the nearest established Columbia Valley operation.

Fish it with a cold Purcell mountain-creek box: a Stimulator or Royal Wulff up top, an Elk Hair Caddis and Adams through summer hatches, then a Hare's Ear, Prince Nymph or Pheasant Tail with a small Woolly Bugger worked through the deeper canyon pockets. Near the kokanee spawning gravel in reach 1, add sparse egg and fry patterns to match the run. Stoneflies, caddisflies, mayflies, summer terrestrials, small sculpin and baitfish and fry round out the food base, along with kokanee eggs and fry where spawning access exists.

There is no named trailhead or put-in confirmed for Dunbar Creek. Reach the drainage from the Brisco crossing on Highway 95, north of Radium Hot Springs, then follow the tertiary logging-road network that also serves the Cartwright, Botts, Twin, Halfway and Leadqueen lakes area. Regional back-country mapping marks these as active, radio-assisted logging roads, so treat every crossing as industrial ground first: never block a road, and confirm current conditions before heading in. Whether the canyon reach, or the Dunbar Lake and Big Fish Lake outlet water above it, can be reached on foot from a legal public crossing has not been confirmed.