These maps and charts show the scale and intensity of the Hill Country floods and highlight Camp Mystic’s proximity to high-risk flood zones.

The rivers etching the terrain are a beloved feature of the rapidly growing region. But last week’s flooding was an agonizing reminder of the dangers they pose.

Thad Heartfield has worn the same clothes since July 4, when his son Aiden, 22, along with Aiden's girlfriend, Ella, and their friends, were swept away in flash floods that devastated Kerr County, Texas.

Also: San Antonio mourned the victims in a Travis Park vigil; UTSA said one of its teachers died in the Guadalupe River flood; Kerrville officials said a privately owned drone collided with a helicopter conducting search and rescue operations.

Local businesses and vacationers are picking up the pieces after devastating flooding along the Guadalupe River in Kerrville.

One of Texas' most popular rivers flooded over the weekend and contributed to Texas' catastrophic flooding that claimed over 80 lives, including two dozen children at Camp Mystic. Here's what to know about the layout of the river and the role it played in one of the state's deadliest flash floods in modern history.