Explore a world of trees at Hoyt Arboretum. Perched on the ridge overlooking the Oregon Zoo, this 175-acre arboretum displays more than 900 species of trees and shrubs, including one of the nation's largest conifer collections. This collection includes the Dawn Redwood. After becoming extinct eons ago, the Dawn Redwood was reintroduced into the United States from China. The tree bore cones when it was only four years old making these cones the first Dawn Redwood cones produced in the Western Hemisphere in 50 million years.

Ten miles of gentle trails wind through this living exhibit past hundreds of plants from distant places.

• Take a guided tour of the public garden Saturday or Sunday at 2:00pm, April through October.
• Hike a portion of the 40-mile loop trail which connects Portland's parks.