The separatist command center closest to Fort Garnik was originally thought to be Mannett Point, but Republic intelligence operatives recently discovered that the main separatist force occupies the island's still-active volcano. This position gives the separatists multiple access points to the island's settlements, as well as a predator's eye view of Fort Garnik itself.
Sources indicate the volcano base originally belonged to a notorious gangster known only as “the Corellian” who disappeared in the civil war's early years. Whether the Corellian joined the separatists or gave them his volcano base under duress is anyone's guess. Regardless, taking out the separatist stronghold has proven almost impossible. Any attack on foot exposes the invading force to withering counterattacks and heavy casualties, but artillery strikes on the volcano risk flooding the entire island with lava.