Farkas Lake was a lake on Eposz, Reach. It was located in restricted airspace. The Sabre Program Launch/Research Range, a facility used in the clandestine Sabre program, was located along its shores.
On August 14, 2552, Noble Team devised a plan to destroy a Covenant supercarrier and required access to the Sabre Program Launch/Research Range. Upon arriving on the shores of Farkas Lake, Noble Team had to fight off an invading Covenant army which were attacking the facility. This lead to them initiating Operation: UPPER CUT.