The _Fan Geyser_ is close by the Firehole on the east bank, not far above the Morning Glory. The _Riverside_ is also on the east bank at the point where the road crosses the river. It is an inconspicuous object when not in eruption, and one would scarcely suspect it of being a geyser. It spouts obliquely across the river, and not, like most geysers, vertically. [Illustration: _Gandy._ Grotto Geyser Cone.] Next in order, after crossing the river to the Westbank, is the _Grotto_, remarkable for its irregular and cavernous crater. A little further on, close to the river, stands the broken crater of one of the Park's greatest geysers, the _Giant_. Lieutenant Doane compared its crater to a "huge shattered horn." A few hundred feet further up stream, still close to the river, is the _Oblong_. Directly across the road, but a short distance away, is the _Splendid_, well worthy of its name; and near it, sometimes playing simultaneously, is the _Comet_. To the westward from the Firehole, nearly on the divide between it and Iron Creek, is a lovely spring, called the _Punch-bowl_. Across the divide in the _Iron Creek_ valley is the _Black Sand Basin_, a unique but beautiful pool. Near it is another attraction, _Specimen Lake_, so named from an abundance of specimens of partly petrified wood. The limit of curiosities in this direction is _Emerald Pool_, which competent judges pronounce to be the finest quiescent spring in the Park. Returning to the Firehole by a different route, we pass a large spring or geyser known as the _Three Crater Spring_. Its three craters are connected by narrow water ways, making one continuous pool, though fed from three sources. A thousand feet to the north, stands the most imposing crater in the Park, that of the _Castle_ geyser. It is frequently seen in moderate eruption, but rarely when doing its best. As ordinarily seen, it throws a column of water only 50 or 60 feet, but at times it plays as high as 150 or 200 feet. [Illustration: _Terry Engr. Co._ _Haynes, Photo., St. Paul._ Castle Geyser.] [Illustration: _Terry Engr. Co._ _First sketch ever made._[BD] Castle Geyser Cone.] [BD] See foot note, page 168. Crossing the river to its right bank, nearly opposite the Castle, there are found within a narrow compass three noted geysers, the _Sawmill_, _Turban_, and _Grand_. Of these, the last is by far the finest, and ranks among the very greatest geysers in the world. It was not seen by the Washburn Party, in 1870, but it seems to have been the first geyser to welcome to the Upper Basin the Hayden and Barlow parties in 1871. Captain Barlow says of its eruption:[BE]