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Perrys Peak 8320 feet.  The site of the avalanche that occurred on Tuesday February 17, 2026.

A guide company that led a ski trip where nine people were killed in an avalanche earlier this year has shut down months after the tragedy.

Blackbird Mountain Guides has ceased operations, according to its website.

On February 17 of this year, an avalanche on Castle Peak near Donner Summit killed nine people, three of whom were Blackbird guides.

Six of the 15 people on the excursion survived.

The incident was the deadliest avalanche in the nation since 1981, and the deadliest in California state history.

The company has faced questions and scrutiny following the incident, largely focused on the choice to continue the trip despite a severe winter storm.

An investigation by California OSHA led to fines of more than $150,000 being levied against the company, according to our CBS affiliate in Sacramento.

The company filed an appeal in August.