You have received some great information so far. I plan to spend more time this year fishing my rivers for smallmouth bass. One other thing to remember is to put your fly in the mud streak created by feeding carp in shallow water. I have caught smallmouth that were following carp as they were feeding. The smallmouth were letting the carp stir up the bottom and the food for them.
Warren
Fly fishing and fly tying are two things that I do, and when I am doing them, they are the only 2 things I think about. They clear my mind.