The Arboretum at Flagstaff is home to 750 species of plants in gardens, greenhouses, and natural habitats and is located 4 miles south of Route 66 on Woody Mountain Road on Flagstaff’s west side. The Arboretum offers summer nature camps, school programs, and a variety of other fun and informative events. The Arboretum is open daily, except Tuesdays from 9:00am to 4:00pm, May through October. Visit for more information.