Nolena,
How cool is that; rafting and fishing on the American River. What a blessing.
My daughter fishes a lot in the Sierra's and deep sea. Matter of fact, she appears in the Western Outdoor News quite a bit. I used to fish a lot but now I'm restricted to local lakes. There are quite a few of us from WW that fish locally and do quite well with the trout.
Sorry, back to your request. There is a site that has some information on fishing the American River; trout, steelhead and strippers.
www.theamericanriver.com/recreation/fishing/I believe it also shows a map of fishing locations.
Have a great time. Need a fishing report when you get back.