jpstanley:
A little bird
jpstanley:
Bison in a steam bath
jpstanley:
Volcano-looking thing
jpstanley:
A small active geyser in Biscuit Basin
jpstanley:
Brink of the Lower Falls
jpstanley:
Grand Canyon of Yellowstone
jpstanley:
Hot spring at West Thumb
jpstanley:
Grand Prismatic Spring
jpstanley:
Silex Spring
jpstanley:
Excelsior Geyser
jpstanley:
Great Fountain Geyser