The Travertine Terraces are beautiful, layered, limestone rock formations. The various colors are due to differences in the carbonate minerals that seep through the limestone.
Ms. Elk surveying her kingdom.
Northern entrance at Gardiner, Montana, only days before it was closed due to severe flooding.
Famed Roosevelt arch, dedicated to the late Teddy Roosevelt, for his role in the park's expansion and preservation. He attended the dedication ceremony, but was never able to return to view the completed arch.
A bison at the Tower Falls
Largest concentration of geysers in the world, surpassing even Iceland