: Yellowstone Rivers: The temps really dipped last night inside the Park, the overnight low nwas 25 degrees. Unfortunately this means that some hoppers died. The last of the terrestrial fishing that you could have will be on crickets and ants. They will be around for a bit longer. It's now time to be fishing your fall baetis patterns. Put an emerger dropping offf of your dry fly, lots of fish are targeting bugs that are rising and are just under the surface. The Madison will be having some October Caddis hatches soon. Try a big fat caddis nymph, these are very big caddis nymps some have some size 10 and 12's. The weather shift will get the Browns in Lewis Lake thinking of the Fall spawn and will start heading for the Lewis Channel. The Lakers will also be heading for shallower spawning areas in both Yellowstone and Lewis Lakes.