Bighorn (Ram) Creek CW (4-2) is individually listed as a tributary of the Wigwam River in the Region 4 synopsis, with the instruction to see Wigwam River. Downstream of the access road near km 42 of the Bighorn (Ram) FSR, Wigwam River rules apply: trout and char catch-and-release, bait banned, Class II when open, tributaries included. Upstream of the Forest Service recreation site at that same km 42 marker adds a Sep 1 to Oct 31 no-fishing closure. Confirm the current synopsis before you fish.

NRCan lists Bighorn Creek as an official Kootenay Land District water at 49.182222, -114.958611. It is a small stream by any measure: the local channel-geometry model puts the median width at about 4.9 m (narrow) and the gradient at about 6.39% (moderately steep), with peak mean-annual discharge around 0.318 m³/s (very low flow), and it sits at stream order 4, mid-range on a scale that runs from 1 for a headwater trickle up to 6 or more for a full river. Provincial records tally 29 direct fish observations on the named creek: 12 bull trout, 9 westslope cutthroat, 5 Dolly Varden and 3 mountain whitefish.

Kootenay Fly Shop calls Ram Creek a small-stream gem that can fish earlier in the season than the Wigwam itself, once it drops low enough to wade comfortably. That is guide intel on fishing character, not confirmation of current access legality or appropriate pressure on a spawning stream, so treat it as a read on the water rather than an invitation. The creek's real headline is its role as bull trout nursery and migration water: the Wigwam River juvenile bull trout and fish habitat monitoring program names the Wigwam system the single most important bull trout spawning stream in the Kootenay Region, with a Bighorn Creek monitoring site, and the cross-border migration out of Lake Koocanusa makes this small drainage disproportionately important for the species.

Direct hatch sampling on Bighorn Creek itself has not turned up, so the nearest verified spine is the Fernie/Elk calendar shared across the Wigwam drainage: golden stoneflies near the mid-June opener, Western Green Drakes, PMDs and Light Cahills, Yellow Sallies, caddisflies, terrestrials through August, and fall Blue-Winged Olives with October caddis into autumn. Working food families where the small-stream habitat allows include stonefly nymphs and adults, caddis, mayflies, midges, terrestrials, juvenile fish and sculpin.

The Bighorn (Ram) Forest Service Road provides the km 42 marker used to define reaches on the Wigwam River regulation table, but road condition, land tenure, seasonal closures and any named trailhead or parking area have not been confirmed. Treat that road as a field check before you commit to a trip, not a guaranteed public put-in.