No, those are not swans huddling together. They’re ice formations at South Dakota’s Waubay National Wildlife Refuge (http://go.usa.gov/fxNR). The refuge is in the Prairie Pothole Region, where glaciers gouged out millions of basins that filled with water as the massive ice sheets retreated about 12,000 years ago. Photo byU.S. Fish and Wildlife Service
No comments:
Post a Comment