There appeared to be no
soil favorable to vegetation, nothing but coarse gravel; yet, over all
this isolated, barren landscape, were diffused such atmospherical tints
and hues, as to blend the whole into harmony and beauty.
In this neighborhood, the captain made search for "the great Tar
Spring," one of the wonders of the mountains; the medicinal properties
of which, he had heard extravagantly lauded by the trappers. After a
toilsome search, he found it at the foot of a sand-bluff, a little east
of the Wind River Mountains; where it exuded in a small stream of the
color and consistency of tar. The men immediately hastened to collect
a quantity of it, to use as an ointment for the galled backs of
their horses, and as a balsam for their own pains and aches. From the
description given of it, it is evidently the bituminous oil, called
petrolium or naphtha, which forms a principal ingredient in the potent
medicine called British Oil. It is found in various parts of Europe and
Asia, in several of the West India islands, and in some places of the
United States. In the state of New York, it is called Seneca Oil, from
being found near the Seneca lake.
The Crow country has other natural curiosities, which are held in
superstitious awe by the Indians, and considered great marvels by the
trappers. Such is the Burning Mountain, on Powder River, abounding
with anthracite coal. Here the earth is hot and cracked; in many places
emitting smoke and sulphurous vapors, as if covering concealed fires.
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