SEQUOIA NATIONAL PARK, California (AP) — High in the evergreen canopy of General Sherman, the world’s largest tree, researchers searched for evidence of an emerging threat to giant sequoias: bark ...

Hyperion, certified by Guinness World Records as the world's tallest living tree, is officially off-limits to visitors. California's Redwood National Park issued a statement last week that anyone who ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SEQUOIA NATIONAL PARK, California (AP) — ...