Northwest Fishing Reports

I am heading up to Lake Roosevelt in mid July and was wondering if anyone knows if there are crawdads in the water? I would assume it does, but if anyone has some spots to try out, then I would appreciate it. We are staying on the lake nears Hunters. I have never been there before and want to catch enough for a dinner. Thanks for any assistance you can offer. Also, I hear the walleye fishing is not bad, so any tips on that one will be great as well.
Thanks