colors, but is now active only in the
white portion of its formation.]

[Illustration: OLD FAITHFUL GEYSER, YELLOWSTONE NATIONAL PARK.--Of
all the geysers in the Yellowstone Park, this is one of the most
interesting and noted on account of the great regularity of its
eruptions, affording splendid opportunities for observation. It
is located in the Upper Geyser Basin, and is situated on a mound
of geyserite built by its own water. The eruptions begin with
preliminary splashes, and continue for several minutes, becoming
more powerful as they follow in rapid succession, when all at once
the steam and water are thrown to a height of one hundred and fifty
feet; this action occurs at intervals of every sixty-five minutes
and lasts from four to five minutes.]

[Illustration: YELLOWSTONE LAKE AND HOT SPRINGS, YELLOWSTONE NATIONAL
PARK.--This large and beautiful sheet of water is nearly one-half mile
higher than the summit of Mount Washington, N. H., and is surrounded
by snow-capped mountains. It covers an area of one hundred and fifty
square miles, and has a great depth. Trout are so plentiful that
there is little pleasure afforded in capturing them. The lake is
fed by numerous large tributaries and a score of smaller streams.
A number of boiling springs, charged with sulphur, alum and alkali,
dot its shores; and the fishermen can cook their trout by dropping
them into the boiling springs without walking from the spot where
they are caught.]

[Illustration: YELLOWSTONE FALLS, YELLOWSTONE NATIONAL PARK.--After
the water of the Yellowstone releases itself from the deep, symmetrical
pool at the foot of the Upper Falls, the river turns to the left and
flows through high bluffs for a short distance, until its sea-green
water leaps from the top of the Great Falls, three hundred and
sixty feet deep, into the profound, abysmal solitude of the Grand
Canyon. This great mass of water breaks into fleecy columns and
sheets of glistening foam as it descends; but it strikes the pool
below with such a great concussion that it is forced upwards in
fountains of spray and clouds of mist.]

[Illustration: GRAND CANYON OF THE YELLOWSTONE, WYOMING.--This wonderful
gorge, whose scenic beauty is not equaled anywhere, has a scene of
enchantment surpassing all expectations. From the Lower Falls it
reveals the most varied groups of crags and rock ever beheld. It
passes through a volcanic plateau, forming broken walls of barbaric
richness of colorin