america
bacteria
blue
calm
colorful
culvert geyser
deep
environment
famous
geothermal
grass trees
green
growth
hot
iron
landscape
minerals
natural
nature
opening
outdoor
outside
place
pool
red
rust
season
sightseeing
summer
sunshine
tourism
travel
united states
visit
volcanic
water
wyoming
yellowstone national park
定額
Geothermal bacteria in the hot blue waters of Culvert Geyser create red, yellow, and orange colors beneath the waters surface at Yellowstone National Park.の素材 [FY310154413195]
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