Just got in from High Sierra camp at Yosemite.  Fished between 8-10'000 feet.  Lots of little brookie streams and Lakes with a few bows mixed in.  The trip was grueling but well worth it.  The fishing itself was tough.  I thought for sure I would hammer them on hopper and ant patterns but these high country fish were selective.  Most fish came on a bugger and some caddis pupae in the streams.  Lots of little guys mostly under the surface.