South Yellowstone.

Day 3: Avalanche Peak, Old Faithful, other geysers and thermal features, Paint Pots.
Yellowstone River.
North Fork Highway, East Yellowstone, Wyoming.
Indian paintbrush, Castilleja miniata, Orobanchaceae Family.
Silvery Lupine, Lupinus argenteus, Fabaceae Family.
Serpentine Arnica, Arnica cernua, Asteraceae Family.
Various peaks of Yellowstone, viewed from the Avalanche Peak trail.
Sylvan and Yellowstone Lakes, viewed from Avalanche Peak trail.
Me on Avalanche Peak.
Avalanche Peak.
Yellowstone Lake.
Roadside bison.
Old Faithful, pre-eruption.
Old Faithful, mid-eruption.
Thermal pool near Old Faithful.
Thermal pool near Old Faithful.
Thermal pool near Old Faithful.
Thermal pool near Old Faithful.
Thermal pool near Old Faithful.
Thermal pool near Old Faithful.
Castle Geyser.
Thermal pool near Old Faithful.
Thermal pool near Old Faithful.
Thermal pool near Old Faithful.
Thermal pool near Old Faithful.
Grand Geyser.
Thermal pool near Old Faithful.
Castle Geyser.
Madison River at Madison Campground.