This insect is found in gravel sections of relatively constant temperature rivers. The Au Sable River in Michigan has a hatch I routinely drive eight hours to fish. Catching trout feeding in the slow glides is my thing, the slow glides adjacent to a riffle on a nice cool day. The flat water runs runs where big trout and I await.

The spinner is generally tied rusty red with an antron wing. I usually tie it with a bright yellow egg sac and I like one wing spent and one upright. I've had some success fishing a yellow dubbed egg imitation on a wide gapped size 18 hook, dead drift under a small indicator.

What a great hatch. Big flies that even old men can see in the civilized time of the day. A prolific hatch that memories are made of. This hatch more than all others seems to have an affinity for the ceder dead falls that are locally called sweepers.

Big fish wallowing way back in a cedar tangle sipping mayflies. Impervious to anything but dynamite. A six-foot throw, way back into the tangle, through a three-foot window, what a game. Catching one of those fish on the resulting six-inch float makes winning the lottery seem to be an easy event. I always preferred fishing the dry during this hatch, definitely the low percentage act, but the most fun. Most fish are caught on the emerger. Never miss the opportunity to experience this hatch.