enchanted valley, lake lacrosse, right after you get down into the dose from lacrosse pass, then enchanted valley again on your way out.
maybe spend a couple nights @ lake lacrosse.
all have rivers/creeks or lakes by them.
ranger station @ enchanted valley and not sure what the deal with fishing in the national park is. the whole hike is in the park.
temp ranger station between lake lacrosse and marmot lakes. they were not in when I went by last. But they keep a tent set up all summer.