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Geyser1991-05-16
Arch Steam Vent 1200
Basin 1200
Blue 1200
Blue Mud Steam Vent 1200
Branch Spring 1200
Cistern Spring 1200
Congress Pool 1200
Corporal 1200
Crater Spring 1200
Dark Cavern 1200
Dishwater Spring 1200
Echinus1448
Emerald Spring 1200
Fearless 1200
Green Dragon Spring 1200
Hurricane Vent 1200
Incline 1200
Minute 1200
Monarch 1200
Orby 1200
Pearl 1200
Porkchop 1200
Puff-n-Stuff 1200
Steamboat 1200
Sunday 1200
Veteran 1200
Vixen 1200
Whistle 1991-05-12 0000-1991-05-24 0000
Yellow Funnel Spring 1200
Values for Old Faithful Area1991-05-16
Astronomical Twilight Begin03:47
Nautical Twilight Begin04:37
Civil Twilight Begin05:20
Sunrise05:54
Sunset20:44
Civil Twilight End21:18
Nautical Twilight End22:01
Astronomical Twilight End22:51
Moon Illumination6.15%

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