At 11:51 pm on Saturday, July 13, the Team was called for a report of a 28 year-old female hiker from the Bay Area who had fallen down a steep snow-filled gully in the vicinity of the Incredible Hulk and had slid out of sight of her hiking partner.
The pair between them had one pair of crampons and one pair of snow traction devices, and they split the gear so that each had a crampon on one foot, and a traction device on the other. They then attempted to cross a steep snowfield above several steep snow-filled gullies, and the subject slipped and slid/tumbled down the gully out of sight of the reporting party (RP).
The RP hailed her partner several times, and no response was received. She realized she was not equipped to safely descend the gully to attempt to locate her friend, and with no mobile phone service available, immediately set out for help.
The RP hiked out approximately 2 hours to Mono Village and from there called 911 via landline for assistance. The Team responded to the Barney Lake Trailhead, just outside of the Mono Village resort.
Three field teams comprised of nine rescuers (including 3 EMTs) left Rescue Base at approximately 12:30 am (technically now Sunday, July 14) and the RP accompanied the field teams to guide them to the PLS (Place Last Seen). Navigating in the dark by headlamp, the field teams arrived at the PLS in approximately 2.5 hours.