One of the remarkable features of Rocky Mountain National Park is the
legibility of the record left by the glaciers during the ages when
America was in the making. The evidences of glacial action, in all their
variety make themselves apparent to even the most casual eye.
In fact, there is scarcely any part of the eastern side where some great
moraine does not force itself upon the attention. One enormous moraine
built up by an ancient glacier and rising with sloping sides nearly a
thousand feet above the valley is so prominent that Moraine Park is
named for it. From Longs Peak on the east side the Mills Moraine makes a
bold curve which instantly draws questions from visitors.
There are several remnants of these mighty ice masses which can be seen
at the present time. Three of the largest ice fields, Andrews, Rowe, and
Tyndall Glaciers, are visited by many people each year, while the
smaller glaciers such as Taylor and Spragues have interest and charm.
In short, this park itself is a primer of glacial geology whose lessons
are so simple, so plain to the eye, that they immediately disclose the
key to one of nature's scenic secrets.