The mass of snow as it moves or comes to a stop near the terminus of an avalanche.

Credit: Flathead Avalanche Center

Avalanche debris can be soft, hard, wet, or dry, and can contain timber, rocks, or other detritus collected by the avalanche. The extent of avalanche debris across a runout zone is referred to as the debris field. 

Credit: Crested Butte Avalanche Center

Avalanche debris can include rocks, logs, or other detritus. Credit: Sawtooth Avalanche Center