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 ...

There’s a new way to see Silver Falls State Park — from the top of an almost 300-foot tree. Tree Climbing at Silver Falls, a new business at Oregon’s largest state park, is offering guided trips that ...

When you think of science and math, you probably don’t picture dangling from a rope 30 feet in the air. But at Davey Tree’s new SEED Campus, short for Science, Employee Education and Development, the ...

Although Mel Hamilton is completely at ease when she works high in the branches of a tree, she said her mother was anxious while watching her compete in the Illinois Arborist Association Annual Tree ...