More than an hour passed between Camp Mystic receiving a severe flood warning and a decision to evacuate young campers asleep in cabins by the Guadalupe River.

Federal regulators repeatedly granted appeals to remove Camp Mystic’s buildings from their 100-year flood map, as the camp operated and expanded in a dangerous flood plain.

Katherine Ferruzzo, a Camp Mystic counselor who had been missing since the Texas floods, was found dead on Friday, July 11, Ferruzzo's family confirmed in a statement obtained by NBC 5.

The mission proved to be much more arduous than expected for her and her small crew of four, all of whom are first tour aviators.

The director of Camp Mystic waited more than an hour after receiving a life-threatening flood alert before beginning to evacuate campers asleep in their cabins, his family confirmed through a spokesman.

"Once I was in the attic, I gave 911 our names and our address so that they could identify our bodies," Ashley Smith shared of her experience

Texas Rangers have identified Kellyanne Elizabeth Lytal, 8, as a victim of Camp Mystic after 27 girls went missing after the Guadalupe River flooded the Christian retreat.

Young girls, camp employees and vacationers are among the at least 120 people who died when Texas' Guadalupe River flooded.

Bubble Inn saw generations of 8-year-olds enter as strangers and emerge as confident young ladies equipped with new skills from the great outdoors and lifelong friends – bonds that would one day prove vital in the face of unfathomable tragedy.

Many of the 650 campers and staffers at Camp Mystic were asleep when, at 1:14 a.m., a flash-flood warning for Kerr County, Texas, with “catastrophic” potential for loss of life was issued by the National Weather Service.