From the Kingfisher Fly Shop:
“The Clark Fork Shop Vac is a pike fly that has been effective for us around the Missoula, Montana area.”
Materials list:
Hook: 4/0
Eyes: White Lead Eyes
Tail: White Bucktail
Feather: Tan Saddle Hackle
Body: Bucktail
Side feathers: Grizzly Soft Hackle
Head: White & Tan Craft Fur
Flash: Speckled Copper Flashabou