Umpqua Atomic Stone Nymph Fly

"The Atomic Stone Nymph is the product of a Salmon Fly nymph needed for the big tail waters of the West Cost, specifically here on the Deschutes River. I first started developing this pattern back in the 90's. At that time the most common stone nymph available was the Kauffman's Stone. While this pattern fit the bill for shape and size it has one major drawback, it's almost impossible to sink it in swift, deep runs. The Atomic Stone was designed to sink, and sink fast. Starting with the heavy tu