A steep gully in alpine terrain. In winter, a couloir is usually filled with snow bound by rocks on either side.
Contact the Avalanche Center
Copyright © 2019 Friends of the Gallatin National Forest Avalanche Center
Advisory: 406-587-6981 | Sitemap
Friends of GNFAC: P.O. Box 6799, Bozeman, MT 59771
501(c)(3) Nonprofit Tax ID: #36-3944120