Two plans, both better in summer.
South Umpqua River in June, July, Aug. for small mouth bass to 5 pounds. Expect about 100+ fish per rod per day. Great days can be double that. Get a guide as the launches are pretty much all private and if you can even locate them and the owner plan on $20 access fee for each one. Lookup Big K ranch on the net in Roseburg/Elkton area of southern Oregon.

2nd
get on the net for your state fish and wildlife offices. Most states post their trout stocking schedule. Plan your trip around them and plan on catching 50 trout per rod. Thats what I did when my wife wanted to learn to flyfish for trout. Now shes a wiz and always wants to go fishing.