Thousands of hikers take on the Grand Canyon’s Rim-to-Rim trek every summer. This year, however, a major trail closure has some experts raising serious safety concerns.

“When the Grand Canyon first became a national park ... improving reliability and preventing chlorine spills. “Allows us to divide the system such that if any one portion had a problem ...

Matt typically covers breaking news and crime. The California Department of Transportation closed Topanga Canyon Boulevard near the Pacific Palisades indefinitely in February after mudslides ...