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Arch Steam Vent 0000, 0000
Castle0920 ie, 1820
Congress Pool 1800
Echinus 1000
Little Cub1000
Old Faithful0834 long, 0944 short, 1038 long, 1157 short, 1359 short, 1457 long, 1611 short, 1701 long
Yellow Funnel Spring 1800
Values for Old Faithful Area1971-10-05
Astronomical Twilight Begin05:48
Nautical Twilight Begin06:22
Civil Twilight Begin06:56
Civil Twilight End19:26
Nautical Twilight End20:00
Astronomical Twilight End20:34
Moon Illumination99.14%

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