From where you're camping you could drive up the PCT, then hike to Dewey Lake to the S., Sheep Lake to the N. Sheep Lake is the much easier hike, both lakes have a bunch of smallish brookies that you almost can't fail to catch. If you're in pretty decent shape, try Deadwood Lakes off the PCT north-abandoned trail goes over the first gap on the PCT N. of Chinook Pass..it's really pretty easy to see where it breaks off the PCT about a half mile in if that. Both lakes have decent rainbows and you'll probably be pretty lonely. Not so with Dewey and Sheep.