Here is the fly pattern sheet for the Timberline Emerger.
Materials
Hook:
TMC 3761 or 200R, #12 – 16
Thread:
Gray
Tail:
Natural marabou fluff from base of ringneck pheasant feather, short and heavy
Rib:
Copper wire
Body:
Gray Partridge SLF or angora goat mixed with gray Haretron
Legs:
Brown neck hackle, tied full
Wing:
Grizzly hen hackle tips, wide and short