Amazing how quickly it's shrunk. I would have imagined that much erosion taking hundreds of thousands of years.,(reply>), If that thing had measured several kilometers in both length &amp; width to begin with, that would probably be the case. Yet, being just about 700 meters long at one point during the 1700s meant that the place ain't gonna last all that long, &amp; worse still, erosions happen faster when the thing being eroded gets smaller.