DENVER (KDVR) A woman from Michigan died while running the ultra marathon Hardrock 100 Endurance race in Colorado on Friday, according to Silverton Medical Rescue.

The race takes place near Silverton and challenges runners with its 102-mile running distance.

At 9:02 a.m. on Friday, the San Juan County Sheriff’s Office and the Silverton Medical Rescue team received a search and rescue call about an in-progress CPR being administered by the Hardrock 100 Safety Sweep Team members.

The woman was located near Gold Lake on Little Giant Trail in San Juan County.

The responding crews had to take a 4×4 backcountry road before hiking a quarter mile to the woman.

Upon reaching the woman, the crews took over the resuscitation efforts, which were unsuccessful.

The woman was pronounced dead at 10:27 a.m.

The San Juan County Colorado Coroners Office identified the woman as 60-year-old Elaine Stypula.

“Silverton Medical Rescue is fortunate to have a team of skilled rescue professionals. We support the community, our visitors and each other even on the most difficult calls,” said Michael Burton, Incident Commander of this SAR call for Silverton Medical Rescue.

Medical teams highlighted the safety and response of the race’s organizers.

“The Hardrock 100 Endurance Race has been exceptional in organization and safety throughout the years and an excellent partner to our community,” said Tyler George, Director of the Silverton Medical Rescue.