Today's Eruptions

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Geyser2021-05-13
Lion0036 wc
Riverside0025 wc
Values for Old Faithful Area2021-05-132021-05-14
Civil Twilight Begin05:2305:22
Sunrise05:5705:56
Sunset20:4220:43
Civil Twilight End21:1521:16
Moon Illumination1.9%5.36%
Last Known Eruption
Old Faithful

4h 27m ago

Grand

4h 28m ago

Castle

4h 25m ago

Riverside

39m ago

Daisy

1h 24m ago

Great Fountain

17d 13h 28m ago

Beehive

13h 57m ago

Steamboat

8d 1h 2m ago