The fog comes on little cat feet. It sits looking over harbor and city on silent haunches and then moves on.
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Summary · Background · Analysis and Themes · Form and Technique · Related Poems
Summary
Carl Sandburg’s “Fog” is a six-line miniature, first published in his debut collection Chicago Poems (1916). In a single image it watches fog roll in over a harbor city, likens it to a cat that settles on its haunches, and then lets it slip away.
One of the shortest and most widely memorized poems in American literature, it distills a passing weather event into a small, perfect picture.
Background
Sandburg later explained how the poem came to be. Carrying a book of Japanese haiku, he was on his way to interview a juvenile court judge and cut through Grant Park, where he caught the fog drifting over Chicago harbor. Made to wait some forty minutes for the judge and holding only a scrap of newsprint, he set out to write what he called an “American haiku” — and “Fog” was the result.
Though the city is never named, the harbor is almost certainly Chicago, the adopted home that shaped so much of his early work.
Analysis and Themes
Two things give the poem its quiet power: the single governing comparison, and the way its few lines trace a complete arc.
The Cat Metaphor
The whole poem turns on one extended metaphor: the fog is a cat. It arrives “on little cat feet,” sits “on silent haunches,” and then moves on — soundless, self-possessed, faintly mysterious.
Sandburg never states the comparison outright with “like” or “as”; he simply lets the fog behave as a cat would, and the image does the rest. The effect is to make an ordinary weather event feel alive and watchful, a creature passing through the city on some errand of its own.
Arrival, Stillness, and Departure
For all its brevity, the poem has a clear three-part shape: the fog comes, it sits and looks, and then it leaves. That arc quietly mirrors the nature of fog itself — and of any fleeting moment. It appears without announcement, lingers briefly, and is gone.
Nothing is explained or moralized; the poem trusts the image alone to suggest stillness, transience, and the strange beauty of something that visits and does not stay.
Form and Technique
“Fog” is free verse — no rhyme, no fixed meter — arranged in two short stanzas of two and four lines. Sandburg conceived it as an “American haiku,” and it shares the haiku’s compression, its focus on a single concrete image, and its restraint: there are no abstractions, only what can be seen.
The technique is pure Imagism, the movement that prized clarity, precision, and the unadorned picture. That spare exactness anticipates later imagist miniatures such as William Carlos Williams’s “The Red Wheelbarrow,” and it remains a standard example of how much a handful of plain words can carry.
Related Poems
- The Red Wheelbarrow by William Carlos Williams: Another tiny imagist poem that loads a single plain image with quiet significance.
- In a Station of the Metro by Ezra Pound: The defining two-line imagist poem, fusing a fleeting urban glimpse to one sharp picture.
- Chicago by Carl Sandburg: The loud civic companion piece from the same 1916 collection — the roar to Fog’s hush.