ores of glacial cirques joined
fan-like to form the Wild Basin Glacier, which swept out through the
narrow valley of St. Vrain. Four glaciers headed at Longs Peak, one west
of Mount Meeker, which gave into the Wild Basin; one west of Longs Peak,
which joined the combination of glaciers that hollowed Loch Vale; one
upon the north, which moulded Glacier Gorge; and the small but powerful
glacier which hollowed the great Chasm on the east front of Longs Peak.
The Loch Vale and Glacier Gorge glaciers joined with giant ice streams
as far north as Tyndall Gorge to form the Bartholf Glacier; and north of
that the mighty Thompson Glacier drained the divide to the head of
Forest Canyon, while the Fall River Glacier drained the Mummy Range
south of Hagues Peak.

These undoubtedly were the main glacial streams of those ancient days,
the agencies responsible for the gorgeous spectacle we now enjoy. The
greater glaciers reached a thickness of two thousand feet; they have
left records scratched high upon the granite walls.

As the glaciers moved down their valleys they carried, imprisoned in
their bodies and heaped upon their backs and sides, the plunder from
their wreckage of the range. This they heaped as large moraines in the
broad valleys. The moraines of the Rocky Mountain National Park are
unequalled, in my observation, for number, size, and story-telling
ability. They are conspicuous features of the great plateau upon the
east, and of the broad valley of the Grand River west of the park. Even
the casual visitor of a day is stirred to curiosity by the straight,
high wall of the great moraine for which Moraine Park is named, and by
the high curved hill which springs from the northeastern shoulder of
Longs Peak, and encircles the eastern foot of Mount Meeker.

[Illustration: _From a photograph by Willis T. Lee_

THE ANDREWS GLACIER HANGS FROM THE CONTINENTAL DIVIDE

A glacier in the Rocky Mountain National Park which can be studied by
visitors]

[Illustration: _From a photograph by H.T. Cowling_

A ROCKY MOUNTAIN CIRQUE CARVED FROM SOLID GRANITE

Iceberg Lake was cut eighteen hundred feet deep by an ancient glacier]

These and other moraines are fascinating features of any visit to Rocky
Mountain National Park. The motor roads disclose them, the trails travel
them. In combination with the gulfs, the shelved canyons and the scarred
and serrated peaks and walls, these moraines offer the visitor a
thrilling mystery story of