Mark Mandrell:
Excelsior Geyser 1
Mark Mandrell:
Excelsior Geyser 2
Mark Mandrell:
Yellowstone Thermal Pool
Mark Mandrell:
Yellowstone Squirrel
Mark Mandrell:
Yellowstone Geyser 1
Mark Mandrell:
Yellowstone Microbial Mat
Mark Mandrell:
Yellowstone Thermal Pool 2
Mark Mandrell:
Yellowstone Heart Spring
Mark Mandrell:
Yellowstone Grand Geyser
Mark Mandrell:
Yellowstone Thermal Pool 3
Mark Mandrell:
Mammoth Hot Springs 1
Mark Mandrell:
Mammoth Hot Springs 2
Mark Mandrell:
Mammoth Hot Springs 3
Mark Mandrell:
Yellowstone Spring 1
Mark Mandrell:
Yellowstone River
Mark Mandrell:
Yellowstone Sun rise
Mark Mandrell:
Yellowstone Morning