Colbert Chalk is a calcium-rich limestone with a shaly edge. Bison and other big grazers would nose into it, eating the soil the same way they would find a mineral lick. It was not just dirt to them. It was a source of strength. Native Habitat Project | MeatEater
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Colbert Chalk is a calcium-rich limestone with a shaly edge. Bison and other big grazers would nose into it, eating the soil the same way they would find a mineral lick. It was not just
MeatEater. . Colbert Chalk is a calcium-rich limestone with a shaly edge. Bison and other big grazers would nose into it, eating the soil the same way they would find a mineral lick. It was not just dirt to them. It was a source of strength. Native Habitat Project
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