FISHING -- Bummer for a great trout stream:

Montana biologists say endemic fungus killing fish in Big Hole River
The Saprolegnia fungus is found in nearly every waterway in Montana, and state wildlife biologists said that fungus is what's killing brown trout in the Big Hole River and that the recent die-off of the trout is the result of perfect timing and conditions for the fungus to kill stressed fish.
--Ravalli Republic