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Description
A map showcasing the Karst regions of Atterra and the hollows the reside below them. Hollows are large subterranean ecosystems that consist of four different levels commonly referred to as 'the four hells'. The hollows are subterranean ecosystems formed from underground rivers, lava tubes, and natural caverns that have existed for tens of millions of years and form connected ecosystems thousands of miles long. These ecosystems have four distinct levels to them. The first level is the areas that connect to the surface through karst regions of the planet. These take the forms of pits and cave entrances, with grass and other surface flora creeping into the cave's deeper parts. In such areas, rivers can be seen flowing into or exiting the hollows, and sparse flora and fauna of the hollows may inhabit these zones. The second layer forms much of the hollow ecosystem and contains the most diverse amounts of flora and fauna present in the hollows. The third level of the hollows is the second largest ecosystem within the caverns and is the deepest part of most hollows. This layer is known for having lakes, aquifers, springs, and oil that boils up to the surface. The fourth layer of the hollows is the rarest and bare ecosystem due to the extreme heat from the planet's mantle, a world of labyrinthine caverns, and roots of biominerals feeding off the geothermal energy and radon deposits at the bottom.

Map originally dawn as a commission by HopeCharlotte

Description
A map showcasing the Karst regions of Atterra and the hollows the reside below them. Hollows are large subterranean ecosystems that consist of four different levels commonly referred to as 'the four hells'. The hollows are subterranean ecosystems formed from underground rivers, lava tubes, and natural caverns that have existed for tens of millions of years and form connected ecosystems thousands of miles long. These ecosystems have four distinct levels to them. The first level is the areas that connect to the surface through karst regions of the planet. These take the forms of pits and cave entrances, with grass and other surface flora creeping into the cave's deeper parts. In such areas, rivers can be seen flowing into or exiting the hollows, and sparse flora and fauna of the hollows may inhabit these zones. The second layer forms much of the hollow ecosystem and contains the most diverse amounts of flora and fauna present in the hollows. The third level of the hollows is the second largest ecosystem within the caverns and is the deepest part of most hollows. This layer is known for having lakes, aquifers, springs, and oil that boils up to the surface. The fourth layer of the hollows is the rarest and bare ecosystem due to the extreme heat from the planet's mantle, a world of labyrinthine caverns, and roots of biominerals feeding off the geothermal energy and radon deposits at the bottom.

Map originally dawn as a commission by HopeCharlotte