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In eruption since 2011
Values for Old Faithful Area2018-07-202018-07-21
Civil Twilight Begin05:2405:25
Sunrise05:5805:59
Sunset21:0020:59
Civil Twilight End21:3521:34
Moon Illumination54.47%64.51%
Last Known Eruption
Grand

6h 12m ago

Castle

9h 57m ago

Riverside

35m ago

Daisy

1h 4m ago

Great Fountain

10h 54m ago

Beehive

1h 50m ago

Steamboat

13d 16h 51m ago



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