Pitts Creek sits entirely inside Kootenay National Park, so it runs on Parks Canada rules, not the BC Region 4 synopsis assumed by the original data model. Parks Canada has closed every waterbody in Kootenay and Yoho national parks to watercraft and angling until March 31, 2027 to slow the spread of aquatic invasive species, including whirling disease. When park waters reopen, fishing here needs a Parks Canada fishing permit (a BC provincial licence does not cover national park water), with park possession limits at or near zero for most native species. Confirm current status on the Parks Canada Kootenay fishing page before making any plan around this creek.

The creek's official mouth sits at roughly 50°44'02"N, 115°54'13"W, well inside the park boundary between Kootenay Crossing and Vermilion Crossing. It runs stream order 5 (mid-range in the network, on a 1-to-6+ scale where 1 is a headwater trickle and 6+ a river) and roughly 6 km, a narrow, steep little channel: median width ~4.6 m (narrow), median gradient ~6.3% (steep), peak mean-annual discharge ~0.367 m³/s (very low flow), with canyon-confined sections rising to roughly 188 m of DEM wall relief. Westslope cutthroat, bull trout, rainbow trout and dolly varden are modelled as reachable habitat given the connected Kootenay River system, but no direct fish-inventory record exists for Pitts Creek itself. Neighbouring park creeks in the same cluster, including Cross River and Daer Creek a short distance north, share the same drainage and the same unresolved status.

None of that matters for a trip right now. Parks Canada has closed every waterbody in Kootenay National Park, Pitts Creek included, to watercraft and angling until March 31, 2027, to slow the spread of aquatic invasive species and whirling disease. Read this as a profile of the water for when that changes, not a place to plan a cast around today.

For the record, the physical profile is classic small backcountry pocket water: steep, narrow and fast, the kind of creek that would fish as tight dry-dropper prospecting for westslope cutthroat using the approach in small stream dry fly for cutthroat, with a streamer worked through any deeper slot for bull trout and dolly varden along the lines of streamer fishing for bull trout. No hatch survey or fishing report exists for Pitts Creek itself, so any fly list is a regional guess rather than a confirmed pattern: a small East Kootenay box built around Elk Hair Caddis, Stimulator and Adams on top, Pheasant Tail and Hare's Ear underneath, and a sparse Woolly Bugger for the char, is the reasonable starting point once the water reopens.

Highway 93 South runs the Kootenay River valley through the park. The nearest developed access is the McLeod Meadows day-use area, from which the park's trail network runs into the general area of Pitts Creek toward Daer Creek further north; trail conditions in this stretch change (a nearby suspension bridge crossing has been closed for damage in the past), so confirm current status directly with Parks Canada rather than relying on any trail description here. None of this is fishing access while the closure is in effect. No guide coverage specific to Pitts Creek was found, which tracks with a multi-year angling closure on water this remote.