Fern Lake, Yellowstone National Park, in different seasons
Detailed Description
High-resolution images of Fern Lake from different seasons. North is up. Fern Lake is about 1 km across from east to west. Red arrows in the winter image point to large zones of open water, indicating either nearshore springs or underwater hydrothermal vents, but there are also many smaller zones of open water that are conspicuous.
Sources/Usage
Public Domain.