At up to 368 feet (112 meters) and 1,500 years old, redwoods are among the world's tallest and oldest living trees. Researchers are struggling to understand and protect these natural treasures.

The biggest of northern California’s giant redwood trees grow more than 250 ft. tall, with a circumference greater than 90 ft. at their base. The oldest have seen more than 3,000 years.

On day 323 of the transect, in Jedediah Smith Redwoods State Park, I dropped over a log 18 feet in diameter into an abyss of giant botanical pickup sticks, deadfall that had piled up amid the ...

Humboldt County Superior Court Judge Kelly Neel ruled in favor of environmental organizations Tuesday in the latest legal battle in the nearly decade-long effort to prevent the widening of Highway 101 ...

The decline of the redwoods is not a huge story — yet, Passmore said. But if drought persists, it could be. It generally takes three to five years or more before drought affects healthy redwoods ...