The Brenstone Mine is a child Biome of the Swamp.
A Brenstone Mine features a large circle of Sulfur with possible veins of Iron throughout. Brenstone mines can take the form of either a small hill or depression.
Brenstone Mines are a great source Sulfur and Wind Magic Stones, while also containing Copper and smaller amounts of Iron, Quartz and Coal
Being inside the Swamp means that survivors will need to keep an eye out for mainly Raptors and Sarcos. The swamp's numerous carnivorous plants can also pose a problem.