You're damn right the government knows about Bigfoot. Take a look at this bulletin from the US Forest Service posted by Bigfoot Evidence forum member GT3Paul. It says if you're confronted by a Sasquatch near the Big Pine areas, DO NOT RUN!:
US Forest Service Bulletin #7-12 Sasquatch Bulletin Posted in forest campgrounds up around my area in the Big Pine Campground areas and Big Pine Creek campgrounds. This is 100 miles north of me.
The US Forest Service warns visitors that recent Sasquatch sightings have occurred in both the lower and upper Big Pine Creek areas. Campers are advised to keep a close lookout and report unusual sightings to either campground hosts or Rangers or the District manager.
IF confronted by a SASQUATCH DO NOT RUN stay calm. If possible take a picture and note the area where sighted. Most sightings occur at night. Therefore activities outside the perimeter of your campground are HIGHLY discouraged.
Kind of delivers a fat lip to skeptics. I am thinking of going up there on Labor day.