I was up at Mills Lake about 3 summers ago and it appeared fishless to me. No activity whatsoever! I would be surprised if there are any golden trout in the outlet stream as the outlet goes underground as it leaves Mills Lake, it's very rocky there. Has a decent spawning area in the inlet stream, so not sure what happened to this lake as I have caught goldens in the past in the 8-11” range. Still, it's a pretty site, a crystal clear sierra lake, above tree level. No frogs here either!
There is still goldens in the Treasure Lakes in Little Lakes Valley.
Crystal Clear Water