Yellowstone: Top Photos

Geysers, bison herds, and wild landscapes that teach kids the power of nature

Algae not lava, near Old Faithful Geyser fields
Colorful algae mats near the Old Faithful geyser fields — sometimes mistaken for lava by first-time visitors, which is an understandable error given the setting. © R. Sieben, CC BY 3.0, via Wikimedia Commons

More on this story

Take Quiz Full Article