The sheriff's office has identified the man who died Monday as 31-year-old Kenneth Kelley.
Witnesses told the sheriff's office he was snowboarding with no helmet in Corona Bowl, which is part of the Mill Valley area on the back side of Stevens Pass.
He was conscious when the ski patrol arrived but lost consciousness at the Nordic Center Lodge and could not be revived.
Stevens Pass Mountain Resort spokesman Chris Danforth says Kelley worked at the resort for five seasons dating back to 2002 and was currently working in the Stevens Pass Rental Tech Center. Danforth says Kelley grew up in Fernwood, Idaho.
Resort General Manager Bill Bourton says the Stevens Pass community "is devastated by the loss of Ken Kelley."