Fly fishers on the East Coast are likely familiar with Cahill nymph patterns. From the Housatonic to the Delaware, the Cahill patterns, both nymph and dry, are go-to flies in the late spring and summer.
Above, Tim Flagler ties his version of the SBR (South Branch Raritan) Light Cahill Nymph, a fly he swears by this time of year. It’s not super-easy pattern to tie, but with practice, it can be tied economically. The end result, though, is absolutely beautiful. And, as Tim points out, this fly is a must-have in Eastern fly boxes. It really works.
— Chris Hunt