Camp Mystic, where deadly Texas flooding took place, is in 'Flash Flood Alley' Flash floods in Texas killed at least 89 people and left dozens unaccounted for on July 4 when the Guadalupe River surged early Friday following torrential rain. The toll includes dozens of children in Kerr County, where 10 girls and one counselor are still missing from Camp Mystic, as of early Monday afternoon. Located 14 miles southwest of Kerrville, Texas, the summer camp is in an area meteorologists refer to as "Flash Flood Alley."
