The Texas blackland prairie
soils are a black, alkaline, calcium-saturated clay, sometimes referred
to as "gumbo," which developed from the Austin chalk formation
and the volcanic ash that adulterated those carbonates as they were
deposited in the shallow Cretaceous-age seas.
Murals line Mary Cliff road on the eastern edge of Twelve Hills (the
western edge of Rosemont Elementary)
"In all things of nature there is something of the marvelous." - Aristotle