Photos of Upper Geyser Basin

The Upper Geyser area covers an area of about 2.6 square kilometers, but it is the place with the highest density of fountains in the world. Famous landscapes such as Old Faithful Fountain, Fountain Hill (OldFaithfulAndGeyserHill), Castle Fountain, Castle-GrandGeyser, DaisyGeyser ), Giant, Cave Fountain (Giant-GrottoGeyser), Riverside Fountain, Morning Lake (Riverside-MorningGloryGeyser), Black Sand, Biscuit Basins (Black Sand and Biscuit Basins). If you go to the geyser area at sunrise or dusk, the dense water vapor and the slanted light often make people unable to distinguish between the sky and the world.