Federal regulators repeatedly granted appeals to remove Camp Mystic's buildings from their 100-year flood map, loosening oversight as the camp operated and expanded in a dangerous flood plain in the years before rushing waters swept away children and counselors, a review by The Associated Press found.

Alyson Crouch Hardin, 64, and Josephine Hardin, 28, traveled to Hunt as they had so many summers previously. They are still missing and presumed dead.