The upper stretch is low but it can fish really well at lower levels. This stretch has more small wild Rainbows and Browns that can get podded up in the bigger pools in the fall. Most of the larger tributaries of the Truckee like Donner Lake, Prosser and Boca Reservoirs are donating water pretty evenly right now. Overall the flows are down from this summer. There have been a few October Caddis sightings and tons of smaller mayflies throughout the day. Nymphing either with an indicator or "Floater No Cator" style high sticking has been really effective. There are still some fish in faster water where an indicator can hinder a good drift. Both techniques should be in your arsenal to most effectively fish the Truckee River any time of year. October Caddis patterns are a good choice for a lead fly and droppers can be a variety of mayfly patterns in sizes 14-18. The Brown Trout are really starting to get active and the next month or so should be awesome.