Yellowstone NP - Upper Geyser Basin
$3.99
Official Travel Stamps Vinyl Sticker
Planning a trip? Check out the Yellowstone National Park website.
The star attraction in this geothermal realm that is home to the world’s highest concentration of geysers is iconic Old Faithful. But visitors who stroll along the basin’s boardwalks and trails also marvel at Castle Geyser eruptions and gaze into the piping-hot water in Heart Spring, named for its shape resembling a human heart.
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