A snowmobile rider was killed in an avalanche Sunday in the Centennial Mountains near Island Park, Idaho, according to the Friends of the Gallatin National Forest Avalanche Center.

The avalanche occurred north of the Keg Springs trailhead, the organization reported on Feb. 22, 2026. Details about the victim have not yet been released.

The Gallatin National Forest Avalanche Center said it plans to visit the site Monday to gather additional information about the incident.

Further information is expected as officials continue to assess the scene.

Source: Info & photo, Friends of GNFAC

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Avalanche