| Note: | [see note June 24] The water was still standing high in the caldron. But by 8:00 o’clock that morning the caldron was completely dry, exposing a 45° funnel-like crater six feet deep, lined with gray sticky clay. The orifice at the bottom of the crater is about ten inches in diameter, but clogged by coarse gravel. By 9:00 a.m. of the same day, water had returned to the crater and risen to a depth of two feet. This was accompanied by violent boiling activity three feet high. At 9:05 a.m. the boiling subsided, only to be followed at 9:10 a.m. by violent activity. By 9:00 a.m. of the same day, water had returned to the crater and risen to a depth of two feet. This was accompanied by violent boiling activity three feet high. At 9:05 a.m. the boiling subsided, only to be followed at 9:10 a.m. by violent activity. While the activity continued, the water level began to fall, leaving the crater dry at 9:20 a.m.
Escape of steam and deep rumbling of of boiling action could be heard from the orifice until 10:30 a.m. when the water reappeared. Two feet of water stood in the caldron with violent boiling (splattering 3 to 4 feet high) until 10:40 a.m. when boiling ceased. The pool quietly disappeared at 10:50 a.m. At 11:50 two inches of water came up through the gravel-clogged vent and remained at that level until 1:00 p.m. when it rose to a three-foot depth. Boiling activity, 8 inches high, continued until 7:00 p.m. when once more the surface became very placid.
[Yellowstone Nature Notes 1946 Vol 20 #6] |
