The Sovereign Mine is one of the Level 1 Section under the Hidden Places sub section of Loading Screen Cortex within the Cortex in Anthem. These aren't listed within the Cortex, but will show up on a loading screen when the relevant expedition is started or a relevant location is reached. The entry displayed will be randomly chosen.
Collection Details
A total of 2 cortex entries make reference to the Cataclysms and their Effects.
The following excerpts from the book show what Cataclysms can do and how they change Coda, for the better or the worse.
The Sovereign Mine (1)
See Cortex Entry: The Sovereign Mine (1) for More Details
Excavation was going as planned until we hit a cavern full of crystals. These crystals are illuminated with an argent glow and appear to be a source of energy. We've collected samples to show potential buyers. Gotta make a living, even if it's off Dominion funds.
—From notes recovered on-site, author unknown
The Sovereign Mine (2)
See Cortex Entry: The Sovereign Mine (2) for More Details
Most people don't realize ursix are very social creatures. They mate for life and are fiercely loyal. Somehow aware of a mate in danger, they will rush to their rescue, no matter the distance. When an ursix reaches old age, their young will return to their family for comfort. What caring creatures!
—From "Bastion's Amazing Animals!" by Venwick Crok