Swallow hole 2018 3

The Swallow Hole

What's in your swallet?
Swallet is the technical term for a swallow-hole, a place where surface water goes slurping down into the subsurface. It's one of the amazing features of karst topography. This page will have links to videos of the swallet on Wilsons Creek near Springfield, showing its evolution from tiny whirlpool to yawning giant. 
Swallow hole April 2017 November 2017