Art: Rakghoul Caverns

“The rakghoul tunnels were series of cave and underground tunnels located beneath the surface of various worlds, such as Alderaan,Tatooine, and Corellia, where rakghoul infestations developed. Existence of the tunnels remained unknown until the plague broke out on those worlds. The Hyland Organization for Rakghoul Neutralization used the Spike to breach the tunnels and allow their forces to combat the infection.” – Wookieepedia: The Star Wars Wiki

Art Rakghoul Caverns