The springs create colorful, tiered terraces of travertine, a form of calcium carbonate, due to the interaction of hot, acidic water with underground limestone. The terraces are constantly changing, with shifts in water flow, seismic activity, and the growth and collapse of features leading to a dynamic and unique appearance. The vivid colors of the terraces are caused by living microorganisms (thermophiles) that thrive in the hot, mineral-rich water.

This little guy was pecking at my sneakers and following me around for a bit.

This was my favorite part of the park. I could spend all day in this area hiking and photographing.

The threat of rain was looming so we hit the road to head to Bozeman.

Goodbye Yellowstone and farewell Wyoming. The state stole my heart and left a little piece behind.