Today's Eruptions

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Geyser2025-07-06
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Values for Old Faithful Area2025-07-062025-07-07
Civil Twilight Begin05:1005:10
Sunrise05:4605:46
Sunset21:1021:09
Civil Twilight End21:4621:45
Moon Illumination80.45%87.47%
Last Known Eruption
Old Faithful

304d 5h 20m ago

Grand

1y 342d 8h 39m ago

Castle

2y 363d 21h 26m ago

Riverside

2y 363d 23h 23m ago

Daisy

2y 363d 23h 23m ago

Great Fountain

2y 364d 4h 29m ago

Beehive

1y 7d 8h 48m ago

Steamboat

3y 17d 5h 51m ago