Rescue operations are ongoing in Central Texas after flash flooding along the Guadalupe River left 23 girls from Camp Mystic unaccounted for. Officials say dozens have died as catastrophic floods continue to ravage the Hill Country.

Some camps in the region had to be evacuated, and local newspapers described how Camp Mystic was among those cut off from the outside world. According to a Kerr County history book, floodwaters at Camp Mystic almost reached the top of the dining hall’s stairs.

Former Camp Mystic camper and counselor Claudia Sullivan spoke with NBC News' Tom Llamas about the significance and future of Camp Mystic.

Flash floods devastate Texas summer camp leaving children missing as catastrophic flooding hits Camp Mystic and families desperately search