Cartographer

The Cartographer is Installation 00's map program, similar to Installation 04's Silent Cartographer (Alpha Halo).

The cartographer is a building on the ark that contains a holographic representation of the ark.

The purpose of this building is to have a way to navigate the massive expanse of area that the Ark is made up of. There was a building of similar shape and interior on Installation 04 and presumably on all other Halo installations. The building can be found when the player crosses through the wall, following Guilty Spark.