Castle Geyser is a cone geyser in the Upper Geyser Basin of Yellowstone National Park. It is noted for the particularly large geyserite sinter deposits, which form its cone. These deposits have been likened in appearance to a castle.
Old Faithful
Old Faithful Inn
Old Faithful Visitor and Education Center
Upper Geyser Basin
Old Faithful Snow Lodge Obsidian Dining Room
Old Faithful Inn Dining Room
Old Faithful Snow Lodge Geyser Grill
Old Faithful Inn Bear Paw Deli