Pop. 144, Spring of 309 (Year 58)
The second cavern complex was found 114 levels below the surface. The first cavern measures 5 levels from floor to ceiling. This one spans a staggering 69 levels, not including the underground lake which is at least 2 levels deep, and possibly more! The complex also features a downward passage and a MAGMA POOL :D. Securing this area will be a far more involved process, but the dwarves of Relicshield are up to the task!