The poem describes a traveler stopping in the woods on a snowy evening to watch the snow fill up the woods. The traveler's horse thinks it's strange to stop without a nearby farmhouse between the dark woods and frozen lake on the darkest evening of the year. The horse shakes its harness bells, wondering if there's been a mistake in stopping. The only other sounds are the wind and falling snowflakes. The woods are lovely but dark and deep, and the traveler has promises to keep and farther to travel before resting for the night.