Overview
- Rosow collapsed during a climb on Bloody Mountain near Mammoth Lakes, with friends reporting the 45-year-old suddenly sat down and became unresponsive Thursday.
- His group texted 911 and performed CPR for hours as rescuers reached the high-alpine site at about 11,400 feet by helicopter and snowmobile in a large coordinated effort.
- Mono County authorities said he was pronounced dead despite those attempts, and his partner, Amber Feld, later confirmed the loss on Instagram.
- Feld said the family believes he suffered a heart-related incident, with the official cause to be determined by a pending autopsy.
- A longtime Mammoth Mountain snowcat operator for more than 25 years and a popular backcountry skier with over 100,000 social followers, Rosow is survived by Feld and their 8-year-old son, Alexander.