AlanK: Good research. It's obvious that this island is a lot hillier than Ryan Island. What happened here involves a lacustrine feature which, to this day, is not understood. Besides, I liked that it resembles a Brahma Bull or maybe a cat going off.
The island definitely resembles some 4-legged animal.
Evidently, an African-American pirate, Black Jack Anderson, and his crew lived on this island for about 10 years. His treasure has never been found.
Hillier is a striking feature. A color whose origin is not understood, despite attempts to analyze it. Hmmmm... a worthy puzzle.