Late in the s an explorer named William Bartram who was traveling near the headwaters of the Ogeechee River in what is now Georgia stumbled upon an extraordinary sight. On a great ridge covered with brush, he saw a huge area covered with vast pits licked into the clay. Some of the pits were over 6 feet deep, and the exposed earth in the pits varied from a deep dark yellow to red to a brilliant white. Roaming the area were a large variety of buffalo , deer , and other wild animals. The horses within the party seemed to know exactly what to do, and commenced to lick and bite at the exposed soil.
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