Police said the snowboarder had ridden into the area off the Millers Ridge Forest Service Road by snowmobile with a group of other men.
The 29-year-old went missing at one point during the day, and someone else in the group hiked back uphill in deep snow and found him head-first down a tree well. The Burnaby man wasn't breathing, and had turned blue.
Pemberton RCMP said members of the group tried unsuccessfully to resuscitate him with CPR.
Pemberton RCMP officers, search and rescue crews and members of the Pemberton Fire Department arrived in the area at 5 p.m. PT as darkness was falling.
Due to a substantial avalanche hazard, crews made the decision to wait until Monday morning to recover the man's body.
MAP: Miller Creek, north of Pemberton, B.C.