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In eruption since 2011
Values for Old Faithful Area2018-04-192018-04-20
Civil Twilight Begin05:5905:58
Sunrise06:3006:29
Sunset20:1320:14
Civil Twilight End20:4420:45
Moon Illumination12.57%21.22%
Last Known Eruption
Castle

9h 12m ago

Grand

2h 34m ago

Daisy

1h 35m ago

Riverside

5h 55m ago

Great Fountain

66d 3h 28m ago

Beehive

2h 12m ago



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