Today's Eruptions

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Geyser2021-05-10
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Values for Old Faithful Area2021-05-102021-05-11
Civil Twilight Begin05:2705:26
Sunrise06:0005:59
Sunset20:3820:39
Civil Twilight End21:1121:13
Moon Illumination2.16%0.27%
Last Known Eruption
Old Faithful

18d 18h 56m ago

Grand

1y 205d 12h 6m ago

Castle

2y 12d 8h 39m ago

Riverside

2y 12d 19h 14m ago

Daisy

19d 7h 37m ago

Great Fountain

2y 12d 18h 55m ago

Beehive

1y 19d 17h 26m ago

Steamboat

2y 15d 16h 24m ago