A trim line, also written as trimline, is a clear line on the side of a valley formed by a glacier. The line marks the most recent highest extent of the glacier. The line may be visible due to changes in color to the rock or to changes in vegetation on either side of the line.
The term "trim line" is also used for similar looking phenomena caused by floods, volcanic activity, or tsunamis.
Famous quotes containing the words trim and/or line:
“It had not a New England but an Oriental character, reminding us of trim Persian gardens, of Haroun Al-raschid, and the artificial lakes of the East.”
—Henry David Thoreau (1817–1862)
“A line will take us hours maybe;
Yet if it does not seem a moment’s thought,
Our stitching and unstitching has been naught.”
—William Butler Yeats (1865–1939)