Over millions of years, this limestone formation created a massive reef structure that stretched across hundreds of miles.

Beneath the towering Guadalupe Mountains of Texas lies a dramatic story of transformation. Once part of an ancient sea, the fossilized Capitan Reef now forms craggy peaks and iconic cliffs like El ...

Guadalupe Peak and El Capitan ... reef that once stretched about 400 miles around the edge of a long-vanished sea. Reefs are a fascinating fusion of biology and geology. They are, after all ...

The fossilized ocean reef in New Mexico's Guadalupe Mountains tells a fascinating story of profound sea-level fluctuation and climate change more than 280 million years ago. Can research on Earth ...

The 8.4-mile Permian Reef Trail in McKittrick Canyon offers interpretive signs highlighting various aspects of this ancient sea and its diverse lifeforms. Guadalupe Peak Trail – 31.89140°N / 104.86°W ...

Canyon Lake, a water source for the city of San Marcos, has dropped to its lowest water level in over 60 years, according to ...