In what experts call "Flash Flood Alley," the terrain reacts quickly to rainfall steep slopes, rocky ground, and narrow riverbeds leave little time for warning.

The Guadalupe River has risen to catastrophic levels in the same area three times in the past century, impacting camps and campers each time.

The region of Texas where flash flooding killed more than 90 people -- including dozens of campers -- is known for its tendency to experience flood emergencies.

The exact volume of floodwaters heading down the Guadalupe may not have been predictable, but anyone familiar with Hill Country topography knows it floods.

It took just 90 minutes for the river to rise more than 30 feet. A look at the historic flood levels now etched into Central Texas history.

The Texas Hill Country has been notorious for flash floods caused by the Guadalupe River. Here's why the area is called "Flash Flood Alley."

The flood on July Fourth completely leveled Mike Richards' cabin on the Guadalupe River. But these days, he's not worried about his cabin.

After a tragedy, records from local archives can help us understand how a community understands itself. Here’s some of what we learned following the devastating July 4 flooding in Texas.

The loss of more than 100 lives, many of them children, to Hill Country floods over the July Fourth weekend has shaken Texans to the core. Closer to home, at least 16 people have died in floods in the Austin area .More than 170 people are still reported missing.

KERRVILLE, Texas (AP) — Rescue crews in Texas kept a wary eye on river levels Monday, hoping to resume the search for people still missing from catastrophic flooding that pummeled the central part of the state earlier this month and killed at least 132 people.