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In eruption since 2011

Today's Eruptions

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Values for Old Faithful Area2020-07-112020-07-12
Civil Twilight Begin05:1405:15
Civil Twilight End21:4321:42
Moon Illumination66.2%56.95%
Last Known Eruption
Old Faithful

136d 2h 45m ago


266d 22h 2m ago


1y 73d 18h 35m ago


1y 74d 5h 10m ago


1y 36d 19h 20m ago

Great Fountain

1y 74d 4h 51m ago


81d 3h 22m ago


1y 77d 2h 20m ago

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