The first large moon of the seventh planet from the primary of the Nivenia system and part of the Nivenian Empire, A7.1 is mainly a mining area for aluminum for the ringworld shells, and has a relatively low population due to its small size. Like many of the outer planets in the Nivenia System, A7.1 is heated by Nivenian colonies placed upon it.
A7.1 has the same newer architecture that most of the more recent colonies, such as A2, possess. Interestingly enough, A7.1 is completely owned by the Megastructural construction corporation and home to one of their largest R&D planets, dramatically boosting the economy.
A7.1 is also a nice place to go spelunking, as lava tubes extend miles below the moon.
Trade with A7.2 is not uncommon, but A7.2 largely cultivates a culture of partial isolationism.