File:Haynes new guide and motorists' complete road log of Yellowstone National Park (1922) (14594824197).jpg

Identifier: haynesnewguidemo1922hayn (find matches)
Title: Haynes new guide and motorists' complete road log of Yellowstone National Park
Year: 1922 (1920s)
Authors: Haynes, Jack Ellis, 1884-1962
Subjects:
Publisher: St. Paul : J.E. Haynes
Contributing Library: Harold B. Lee Library
Digitizing Sponsor: Brigham Young University

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Giantess is emptied, a steam-period ensues,the entire eruption lasting from twelve to twenty-fouihours. During 1911 the intervals between eruptionsvaried from four to twelve days; while a few years agothe Giantess played only every three to four weeks. Thisaccurate record disproves, in this case at least, that thegeysers are all diminishing in eruptive violence and fre-quency. It is now pretty generally believed that, whilethis thermal activity as a whole is decreasing, a centurybrings only an imperceptible change. The late N. P.Langford, writer and explorer, who visited the Park withthe Washburn party in 1870, stated in 1910, while at theUpper Basin, that he saw absolutely no perceptible changein Old Faithful Geyser, or any of the others. On the prominence with the Giantess, are twocauldrons, the Teakettle and the Vault; the latter is ageyser which plays eight feet high twenty-four hoursbefore the Giantess. Topaz Pool is at the base of theGiantess mound. YELLOWSTONE NATIONAL PARK 75
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SPONGE GEYSER The Piunp, at the foot of the Giantess mound in thedirection of Sponge Geyser, is a hole eighteen inchesacross out of which comes a thumping sound resemblingan hydraulic ram at work. Spongfe Geyser, a short distance east of the Giant-ess, is remarkable on account of the appearance of itscone, a flinty formation, porous and yellow like a sponge.The eruptions occur a minute and a quarter apart and areabout four feet high. Doublet Paol, marked ^^Dangerous on the sign-board, is a good example of the overhanging crust forma-tion. No doubt in time it will be practically all coveredover; although this sinter formation, characteristic of theentire Upper Basin, forms very slowly. Beacli Spring, north of the Doublet, has a centralopening surrounded by a rather wide, submerged beach,which is symmetrical and practically flat. The Ear is on the summit of a mound between theBeach and the Lion group. Curiously enough it not onlyresembles an ear in shape, but the lobe is pierced and the

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