MOUSE RAT

Trigger explosive, heart-stopping surface strikes from the apex predators of the river with the Mouse Rat fly, available now at the Ugly Bug Fly Shop! Originally designed decades ago and celebrated worldwide for its uncompromised productivity, this legendary topwater pattern is a true multi-species weapon. The core of the fly is masterfully spun and trimmed from ultra-buoyant, high-density hollow deer hair, creating a robust silhouette that pushes a massive acoustic wake across the surface film. Finished with realistic ears, whiskers, and a flexible leather tail that wriggles organically on the strip, it perfectly mimics a panicked, drowning rodent swimming for the bank. Whether you are executing a midnight mousing run for highly educated trophy brown trout, casting into Alaskan wilderness pools for giant leopard rainbows, or throwing into the lily pads for aggressive northern pike and largemouth bass, this durable attractor delivers uncompromised big-fish performance.

While most anglers pack up their gear when the sun sets over the Grey Reef and Miracle Mile stretches of the North Platte River right here in Casper, the largest resident brown trout in the river are just waking up. These nocturnal monsters leave their deep gravel sanctuaries to hunt shallow weed lines and muddy cut-banks for high-protein meals. The Mouse Rat is our number-one weapon for this thrilling night window. Fish this pattern on a heavy, fast-action rod like an ECHO Streamer X paired with a short, stout section of 0X or 1X Maxima Clear leader material. Cast directly against the banks at a tight downward angle and employ slow, steady, chugging strips. The heavy wake creates a distinct acoustic thud that allows local monsters to track and smash the fly in total pitch-black darkness.