Texas Gov. Greg Abbott signed an expanded emergency declaration that added Texas counties impacted by the disastrous flooding. The new declaration now includes Bexar, Burnet, Caldwell, Guadalupe, Travis and Williamson counties, Abbott said at a press conference Saturday afternoon.

The hills along the Guadalupe River in central Texas are dotted with century-old youth camps and campgrounds where generations of families have come to swim and enjoy the outdoors. The area is especially popular around the July Fourth holiday, making it more difficult to know how many are missing.