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Anemone-Big1611 wc
Aurum0521 wc, 1238 wc
Beehive0539 wc
Beehive's Indicator0532 ie wc
Castle0640 wc maj, 1927 E maj
Cinnamon Spouter1255 ie
Cistern Spring 1530
Cliff1233 ie
Daisy0052 E, 0301 wc, 0516 wc, 0734 E, 0950 E, 1214 ie wc, 1442 wc, 1706 wc, 1942 E, 2205 E
Depression1307 wc
Emerald Spring 0730-1730
Event Non-Geyser Related 0717,  0936
Flood1319, 1407 ie, 1541 ie
Fungoid Spring 0715,  1257,  1550-1820
Grand0241 wc, 0853 ie wc, 1442 wc, 2030 E
Jagged Spring1306 ie
Lion1602 ie wc ini, 1720 wc, 1836 ie wc, 1940 ie wc, 2041 ie wc
Little Cub0717 ie wc, 1023 ie wc, 1053 ie wc, 1125 ie, 1155 ns, 1226, 1257 ie wc, 1329 ie wc
Old Faithful0413 wc long, 0602 wc long, 0730 wc long, 0914 wc long, 1041 ns wc long, 1214 wc long, 1349 wc long, 1526 wc, 1649 ie wc long, 1833 wc long, 2014 wc long, 2136 wc long, 2306 wc long
Ragged Spring1306 ie
Rift0821 ie wc
Riverside0340 ns wc, 1002 ie wc, 1558 ns wc
Spouter1232 ie
Sprinkler0638 ie wc
Steamboat 0730-1730,  0800-1230,  1534-1615
Three Crater1141, 1153, 1202, 1213
UNNG-BSB-21249 ie
White Dome0713, 1126 ie, 1754 ie
Values for Old Faithful Area2019-04-21
Astronomical Twilight Begin04:39
Nautical Twilight Begin05:20
Civil Twilight Begin05:58
Civil Twilight End20:45
Nautical Twilight End21:23
Astronomical Twilight End22:04
Moon Illumination95.88%

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