Snowmobiler riding past the avalance zone sign on Sylvan Pass. Photo: Jacob W. Frank // NPS. DISCLAIMER: This photo does not depict nor is related to the incident discussed in this article.

WEST YELLOWSTONE, Mont. (AP) — A snowmobiler died over the weekend when an avalanche swept him downhill and into trees in the Lionhead area west of West Yellowstone, the Gallatin National Forest Avalanche Center reported Monday.

The man was partially buried in Sunday’s shallow slide and efforts to resuscitate him were unsuccessful, center officials said.

His name has not been released.

It was the third avalanche death in Montana this season. Minnesota snowmobilers Jesse and Carl Thelen were killed on Dec. 27 north of Cooke City, Park County officials said.

The Colorado Avalanche Information Center has reported nine avalanche deaths this winter season, including four snowmobilers.