A 40-year-old man from Washington, D.C., died in a Saturday night snowmobile crash on the back side of Aspen Mountain off Midnight Mine Road, the Pitkin County Sheriff’s Office reported Sunday morning.

A Pitkin County Coroner's Office statement on Sunday evening identified the man as John Boyd and said he had been vacationing in the area. The cause and manner of death is pending further investigation, according to the statement from Deputy Coroner Eric Hansen.

According to a sheriff's news release, Pitkin County dispatchers received a 911 call at 7:21 p.m. Saturday about a serious injury involving a snowmobile in the Midnight Mine Road area. Two Aspen Mountain Ski Patrol members, as well Mountain Rescue Aspen personnel, arrived on the scene using snowmobiles and determined that the victim was deceased, the release says.

The crash occurred about three miles up Midnight Road from Castle Creek Road. Mountain Rescue Aspen responded with multiple snowmobiles as Midnight Mine Road is not accessible in winter by car or truck after the first mile. In addition, two ski patrol members traveled from the Sundeck area of Aspen Mountain on snowmobiles, the release says.

Arriving at the scene within 30 minutes of the 911 call, rescue personnel determined that the adult male involved in the crash was deceased. The snowmobiler was traveling with another snowmobiler who was subsequently interviewed by a sheriff’s office investigator, the release states.

The sheriff’s office release acknowledges the emergency entities that responded to the incident, including the Aspen Volunteer Fire Department, Mountain Rescue Aspen, Aspen Ambulance District and the Aspen Mountain Ski Patrol.

The Aspen Daily News will update this story as more information becomes available.