The Twelve Mounts, a chain of mountains that encircled both Castle Pradeux and the Naval Academy on Prefsbelt IV, were each designated with the name of a significant naval battle. These peaks towered over Castle Pradeux. The Naval Crypt, the final resting place of the "Father of the Navy", Admiral Pers Pradeux, was situated far inside this mountain range. Historical artifacts and monuments were scattered across the slope of the Twelve Mounts. Prefsbelt Green lay at the base of the mountain range.