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Geyser1975-08-21
Bear Den1335, 1720
Beehive's Indicator0740, 1023 ie, 1950
Castle0946, 1912
Cistern Spring 1530-1630
Corporal0900 A
Crystal Spring0827 ?
Depression1320, 1912 ie
Echinus0850, 0942, 1025 A, 1115, 1205, 1524,  1800, 2214, 2300
Emerald Spring 0810,  1530-1630
Grand1041, 1830
Great Fountain0845, 1618
Lion0912, 1143 ie, 1201 ie, 1323, 1537, 1659
Minute 1800
Monarch 1800
North Goggle0909
Old Faithful0019 short, 0115 long, 0239 long, 0344 long, 0453 short, 0545 long, 0705 short, 0750 long, 0914 short, 1002 long, 1117 short, 1215 long, 1333 short, 1421 long, 1545 short, 1636 long, 1759 long, 1910 long, 2031 long, 2135 long, 2306 long
Old Tardy0827 ?
Penta1630 ie
Porkchop0907 ie
Rediscovered1310 ie
Riverside1029
Round1845
Valentine1525
Veteran0900 A, 0920 ie
Vixen 1030-1040,  1800
Yellow Funnel Spring 1800
Values for Old Faithful Area1975-08-21
Astronomical Twilight Begin04:43
Nautical Twilight Begin05:24
Civil Twilight Begin06:01
Sunrise06:32
Sunset20:20
Civil Twilight End20:51
Nautical Twilight End21:28
Astronomical Twilight End22:09
Moon Illumination99.69%

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