on formations were charted by Lewis and Clark as "The
Stone Walls." Their fantastic outlines have been admired and described
by modern tourists, and some of them have been named "Cathedral Rocks,"
"Citadel Rock," "Hole in the Wall," and so on.

Passing out of this wonderful region, the expedition entered upon a more
level country, here and there broken by bluffy formations which extended
along the river, occasionally interspersed with low hills. Their journal
says:

"In the plains near the river are the choke-cherry, yellow and red
currant bushes, as well as the wild rose and prickly pear, both of which
are now in bloom. From the tops of the river-hills, which are lower than
usual, we enjoyed a delightful view of the rich, fertile plains on
both sides, in many places extending from the river-cliffs to a great
distance back. In these plains we meet, occasionally, large banks of
pure sand, which were driven apparently by the southwest winds and there
deposited. The plains are more fertile some distance from the river than
near its banks, where the surface of the earth is very generally
strewed with small pebbles, which appear to be smoothed and worn by the
agitation of the waters with which they were, no doubt, once covered."

Under date of June 2d, the journal says:--

"The current of the river is strong but regular, the timber increases
in quantity, the low grounds become more level and extensive, and the
bluffs are lower than before. As the game is very abundant, we think
it necessary to begin a collection of hides for the purpose of making
a leathern boat, which we intend constructing shortly. The hunters, who
were out the greater part of the day, brought in six elk, two buffalo,
two mule-deer, and a bear. This last animal had nearly cost us the lives
of two of our hunters, who were together when he attacked them. One
of them narrowly escaped being caught, and the other, after running
a considerable distance, concealed himself in some thick bushes, and,
while the bear was in quick pursuit of his hiding-place, his companion
came up, and fortunately shot the animal through the head."

Here the party came to the mouth of a large river which entered the
Missouri from the northwest, at the site of the latter-day town of
Ophir, Montana. This stream they named Maria's River, in honor of
another Virginia damsel. So large and important in appearance was
Maria's River that the explorers were not certain which was the main