Crappie are definitely more popular in lakes and reservoirs than rivers. In lakes and reservoirs, you will really only find them shallow early in the spring, then crappie move out towards deeper water. Crappie love wood and they can also be found around weeds and rocks too. Crappie are known for schooling out over open water which makes fishing difficult until you can find them. You may find these fish 20 to 40 feet down from summer through fall out over open water. They can also be found in very clear water and murky water, so they do well in many different environments.