Alterra Bases

Alterra Bases are Seabases utilized by the Sector Zero division of Alterra. They are set up in various points of interest in order to study the environment, as well as any Architect activity in the area.
== Bases ==
==Tech Sites==
Category:Story
Category:Alterra Structures
Category:Lilypad Islands
Category:Alterra Corporation
Category:Delta Island
Category:Glacial Basin
Category:Glacial Bay
Category:Arctic Spires
Category:Arctic Kelp Forest
Category:Twisty Bridges
Category:Shallow Twisty Bridges