fhopson:
Rock glacier_Wrangell-St Elias NP&P-4951
fhopson:
Mt Ziggurat
fhopson:
Flow banding in Mt Ziggurat rhyolite.
fhopson:
Fiamme in strongly welded ashflow tuff near Hickison Summit, Nevada
fhopson:
Columnar jointing in Mt Ziggurat rhyolite
fhopson:
Terminal Geyser
fhopson:
Terminal Geyser Fault scarp
fhopson:
Sifford Mountain
fhopson:
Devils Kitchen hydrothermal alteration
fhopson:
Devils Kitchen fumaroles
fhopson:
Boiling Springs Lake and Lassen Peak
fhopson:
Hat Creek Fault Zone and Hat Creek Valley
fhopson:
Brokeoff Mountain, Brokeoff Volcano lavas, and debris flow.
fhopson:
Caribou Volcanic Field
fhopson:
Mount Helen and Bumpass Mountain
fhopson:
Lassen Volcanic Center from Lake Almanor
fhopson:
Diamond Peak
fhopson:
Devastated Area from Lassen Peak
fhopson:
West Prospect Peak and Prospect Peak
fhopson:
Lassen Peak summit pinnacle
fhopson:
Landslide along West Sulphur Creek
fhopson:
Hot Spring at Sulphur Works
fhopson:
Emerald Lake
fhopson:
Devastated Area and Lassen Peak
fhopson:
Pyrite scum floating on the surface of at West Pyrite Pool, Bumpass Hell
fhopson:
Mud pile blown out of a vent at Boiling Springs Lake.
fhopson:
Fumarole at Devils Kitchen.
fhopson:
Fumerole at Devils Kitchen
fhopson:
Boiling Springs Lake
fhopson:
Table Mountain
