Geographer David:
Firehole River falls, Yellowstone National Park, Wyoming
Geographer David:
Yellowstone National Park, Wyoming
Geographer David:
Yellowstone National Park, Wyoming
Geographer David:
Yellowstone National Park, Wyoming
Geographer David:
Yellowstone National Park, Wyoming
Geographer David:
Yellowstone National Park, Wyoming
Geographer David:
Yellowstone National Park, Wyoming
Geographer David:
Yellowstone National Park, Wyoming
Geographer David:
Yellowstone National Park, Wyoming
Geographer David:
Yellowstone National Park, Wyoming
Geographer David:
Yellowstone National Park, Wyoming
Geographer David:
Yellowstone National Park, Wyoming
Geographer David:
Yellowstone National Park, Wyoming
Geographer David:
Yellowstone National Park, Wyoming
Geographer David:
Clepsydra Geyser, Yellowstone
Geographer David:
Clepsydra Geyser
Geographer David:
Clepsydra Geyser
Geographer David:
Clepsydra Geyser
Geographer David:
Clepsydra Geyser
Geographer David:
Clepsydra Geyser
Geographer David:
Clepsydra Geyser
Geographer David:
Clepsydra Geyser
Geographer David:
Clepsydra Geyser
Geographer David:
Clepsydra Geyser
Geographer David:
Clepsydra Geyser
Geographer David:
Clepsydra Geyser
Geographer David:
Clepsydra Geyser
Geographer David:
Clepsydra and New Bellefontaine Geysers, Yellowstone
Geographer David:
Clepsydra and New Bellefontaine Geysers, Yellowstone
Geographer David:
Clepsydra Geyser
