Pine trees are one of the most common coniferous species in North America. Learn how to identify the types found in the United States and Canada.

Learn the state tree for each of the 50 states, plus the District of Columbia. Here's the full list, plus four states that have the same state tree.

One tree in Central Oregon has helped protect iconic whitebark pine trees across the West. Scientists have sequenced the threatened tree’s genome, which helps plant more resilient trees faster ...

GRAYLING, MICH. -- Despite its recovery from the endangered species list, the tiny Kirtland’s warbler still needs some help from humans. Volunteers are needed this spring to help plant pine ...

The whitebark pine is one of a handful of trees that thrive in the cold, wind-swept heights of the Rockies and other rugged western mountain ranges, clinging to slopes for centuries even in the ...

The oldest tree species is the Great Basin bristlecone pine, with many trees dating back around 4,000 years. The oldest tree is named Methuselah and it dates back nearly 5,000 years.

You’ll travel under the shade of pine trees and, in the right season, spot native wildflowers, including the funky red snow plant. To start, park at the Buckhorn Day Use area or the large ...