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Geyser1971-08-31
Beehive1040, 1956
Castle1515
Depression1358
Echinus0850, 0935, 1029, 1217, 1402
Fan and Mortar1040
Grand0855, 1623
Great Fountain1340
Ledge1145 A
Oblong1628
Old Faithful0846 short, 0932 long, 1044 long, 1205 long, 1306 short, 1417 long, 1525 long, 1629 long, 1749 short, 1835 long, 1946 long, 2055 short
Riverside1212
Values for Old Faithful Area1971-08-31
Astronomical Twilight Begin04:59
Nautical Twilight Begin05:38
Civil Twilight Begin06:14
Sunrise06:44
Sunset20:02
Civil Twilight End20:32
Nautical Twilight End21:09
Astronomical Twilight End21:47
Moon Illumination71.09%

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