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Geyser1975-10-21
Beehive's Indicator1758 ie
Castle0708
Dome 0000-1200
Grand1431 ie
Great Fountain1028, 1923
Lion0805 ie, 0940 ie, 1253, 1556, 1645
Old Faithful0858 short, 0943 long, 1115 long, 1229 long, 1336 long, 1448 long, 1605, 1657 long
Other Geyser 0000-2359
Values for Old Faithful Area1975-10-21
Astronomical Twilight Begin06:08
Nautical Twilight Begin06:42
Civil Twilight Begin07:16
Sunrise07:45
Sunset18:30
Civil Twilight End18:59
Nautical Twilight End19:33
Astronomical Twilight End20:07
Moon Illumination99.02%

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