My first experience on a real spring creek occurred in September of 1971 when three guys from Michigan made a trip to Idaho, Montana and Wyoming for the exclusive purpose of fly fishing for trout. Prior to this trip all of my fly fishing had been confined to the streams of Michigan and New York. While Michigan's Au Sable has many spring creek like characteristics it lacks many of the characteristics that define a true spring creek. However, I owe my subsequent successes on spring creek waters to the lessons I learned while fishing on the Au Sable River.