It is called the Mosquito Fire, a “controlled burn”.  This is a prescribed burn, deliberately set between Mosquito Creek and Avalanche Creek. (Never heard of that one – maybe it is along the Tar Gap trail, which leads to Hockett Meadow?) It is supposed to eliminate fuels. I’ve heard that within 7-8 years, all said fuels have grown back, and now in addition to said fuels, there are dead standing trees.