The Denver Post said Russell was pulled from the water unconscious and CPR was administered, but she was pronounced dead after 30 minutes.
“There are no words to convey the tragedy of losing a loved one like this,” Teri Tucker, Acting Superintendent of the national recreation area, told the Denver Post. “Our hearts are with the family and friends of the victims during this time of unexpected pain and loss.”
Neither Russell nor her son were wearing life jackets at the time, according to the Denver Post. The incident is currently being investigated by the National Park Service, San Juan County Sheriff’s Office and Utah State Parks.