BOULDER, Colo. — April 26 marks Arbor Day. People around the world celebrate the holiday by planting trees. The holiday started in Nebraska in 1872. More than 1 million plants were reportedly planted ...

Stella Dee, PhD student and tree-climbing champion, demonstrated proper tree-climbing techniques Tuesday morning as part of Founder’s Day, a University of Massachusetts Amherst celebration honoring ...

Taking to the trees Students from a summer adventure camp in Evergreen, Colorado, climb the trunk of “Gus Otis,” a ponderosa pine. They are first-timers, learning to climb at one of Tree Climbing ...

TUCSON, Ariz. (KGUN) — Trees give us shade, they give us fruit and they give us life. But it takes a lot of work to keep our trees healthy. Friday was the start of the Arizona Community Tree Council’s ...

Jonathan Houghton represented the state at the 2025 International Tree Climbing Championship in New Zealand, placing sixth in the Open Ascent Event. Houghton was recently honored with a Hunterdon ...

Suspended nearly 200 feet in the air, tree climbers made their way to the canopies of giant Douglas firs on Aug. 23 at Silver Falls State Park during the annual Tree Climbers Rendezvous. Tree Climbing ...