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Geyser1971-07-31
Africa1000, 1100, 1400, 1525, 1636
Bear Den 1200, 1644
Beehive1154, 2024
Blue 1200
Castle1030, 1850
Colloidal Pool 1200
Constant 1200
Crater Spring 1200
Dark Cavern 1200
Dishwater Spring 1200
Echinus0932, 1020, 1107, 1155, 1242, 1415, 1500, 1545, 1710, 1755
Fan-Norris 1200
Fearless 1200
Fireball 1200
Grand0845 ie, 1650 ie
Guardian 1200
Harding 1200
Hurricane Vent 1200
Jetsam Pool 1200,  1800
Lion1614, 1715, 1955
Little Whirligig 1200
Minute 1200
Monarch 1200
Mystic Spring 1200
North Goggle2004
Old Faithful0746 long, 0909 short, 0950 long, 1102 short, 1148 long, 1310 short, 1358 long, 1518 short, 1603 long, 1721 short, 1810 long, 1920 short, 2005 long
Palpitator Spring 1200
Pinto 1200
Pinwheel 1200
Riverside0736, 1340, 1958
Scummy Pool 1200
Splutter Pot 1200
Sunday 1200
Tantalus 1200
Valentine1915
Veteran 1200
White Dome0830
Yellow Funnel Spring 1200
Values for Old Faithful Area1971-07-31
Astronomical Twilight Begin04:04
Nautical Twilight Begin04:53
Civil Twilight Begin05:35
Sunrise06:08
Sunset20:50
Civil Twilight End21:24
Nautical Twilight End22:06
Astronomical Twilight End22:54
Moon Illumination57.65%

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