Red Line Creek is a small tributary of Horsethief Creek in the Columbia Valley near Invermere, one of the family of small feeder creeks (alongside Stockdale, McDonald, Fan and others) that drain into Horsethief Creek before it reaches the Columbia River. Provincial fish-inventory data carries no direct observations here, so it stays a field-check water rather than a confirmed fishery.
The water
The creek's mouth sits at 50.50292, -116.42930, within the Horsethief Creek drainage in the Radium-Invermere-Fairmont corridor. No stream-order, channel-geometry or discharge figures were confirmed for Red Line Creek specifically in the local extraction, and no dedicated survey or beat data was found. That leaves size, gradient and flow character unconfirmed, unlike the better-documented water on Horsethief Creek itself.
The fishing
With no direct fish records in the local extract, there is nothing confirmed to plan a trip around. If a legal, fishable reach with coldwater fish turns up, small-stream attractors and naturals are the sensible starting point: an Adams, Elk Hair Caddis or Stimulator up top, a Hare's Ear or Prince Nymph underneath, and small Terrestrials (Hoppers, Ants, Beetles) through summer. Mayflies, Caddisflies (Sedges) and Stoneflies are the likely food base if coldwater fish are present, the same insect community that drives the fishing on Horsethief Creek and its better-documented siblings.
Treat this as an open field check
Access and the rules
No named trailhead, road access point or parking area has been confirmed for Red Line Creek. It sits within the same Columbia Valley forest road network that serves Horsethief Creek and its other tributaries near Invermere, but no source ties a specific route or put-in to this creek.
