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Group Lone Star Geyser | Upper Geyser Basin | Group Old Faithful Geyser |
The geyser basin around Old Faithful with several thermal areas (such as the Biscuit Basin).
Old Faithful Geyser
At the United States' most famous geyser. |
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Upper Geysers
The other geysers in the vicinity of Old Faithful. |
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Biscuit Basin
An isolated thermal feature with sinter deposits. |
Group Lone Star Geyser | Group Old Faithful Geyser | © 2012 Dirk S. Grossmann |