A 3.3-magnitude earthquake hit Northern California Monday evening near Los Banos, about 30 miles from San Jose. No damage reported from minor temblor.

Tucked away in Huntingdon County, Trough Creek State Park showcases rock formations so uniquely spectacular that geologists get misty-eyed just thinking about them, yet somehow this 541-acre ...

Petrified waterfalls are formed when mineral-rich water flows over rock surfaces and evaporates, leaving behind layers of ...

Beneath layers of waste, landfills around the US have been reaching scorching temperatures, spewing toxic gases and geysers ...

Find out how some animals at Yellowstone National Park make fatal mistakes, and learn about the real reason why hot springs ...