Montana Fly Company Clarke's Rat- Olive (3-Pack)

An absolute depth charge when you need to get down extremely fast.  This has been one of the top Metolius River bull trout patterns for well over a decade.  

As this fly is extremely heavy, don't attempt to cast it with anything less than a 7 weight rod.  You can strip or dead-drift this pattern and it will hold-up well to the toothiest predators.