This capture is from park records at Yosemite referencing documents concerning "Bigfoot, Sasquatch, Yeti, or Cebidatelidae" (translates to New World Monkey).
There have been various names for Bigfoot bantered around by government officials. Let's look at some
These above variants listed came from a supposed government autopsy report. LINK
This drawing above was supposedly a government document for training military in survival and what to expect they might encounter in certain regions.
A caving expert friend mentioned a primate research area for the university up in the Sierras in California. Now, why would they study primates there?
How much does the government know about Bigfoot? No doubt, they are very aware of these people and their comings and goings.