Our temps have dropped and the snowmaking has started on Baldy (Sun Valley, Idaho) and there are still a few baetis and midges around and if you are lucky you may even find a fish or two feeding on top. Below is an image of a baetis trying to get off the water just after drying its wings. For a sense of scale, you could easily put 4 or 5 of these mayflies on your pinkie.

Baetis  & Reflection