Not long ago, it was rare to see anyone fishing the Salmon River with a two-handed rod, but that’s changing. Two-handers, often referred to as Spey rods, are becoming a common sight along the river.

The spey rod helped Turek make a 90-degree switch in the casting direction of the fly line, a difficult task with a fly rod. "You could do somewhat the same thing with a conventional fly rod by making ...