Today's Eruptions

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Geyser2021-09-26
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Values for Old Faithful Area2021-09-262021-09-27
Civil Twilight Begin06:4606:48
Sunrise07:1507:17
Sunset19:1319:11
Civil Twilight End19:4119:40
Moon Illumination75.48%66.93%
Last Known Eruption
Old Faithful

125d 4h 37m ago

Grand

98d 19h 43m ago

Castle

2y 151d 11h 49m ago

Riverside

2y 151d 22h 24m ago

Daisy

158d 10h 47m ago

Great Fountain

2y 151d 22h 5m ago

Beehive

1y 158d 20h 36m ago

Steamboat

2y 154d 19h 34m ago