In 1981, surrounding land was added to the Natural Area, bringing it to its present 210 acres. Trails and Habitats Andorra Hill is one of the highest elevations in Philadelphia County. The Tree House is located halfway up the hill, while the upper parking lot is almost on top. The trails wind through mature woodlands and overgrown fields with small trees and berry bushed, and past clearings and mowed areas planted with late summer flowers. The Andorra Natural Center has over 210 acres of woodlands, old forest, and meadow with 5 miles of trails.
Most trails are open to equestrians, and all trails are off limits to bikes.
In Spring, look for fragile wildflowers in the woods and a great variety of both nesting and migrating birds. In Summer, early morning or evening walks in the fields may reveal deer with their fawns, or baby rabbits along the trails. Autumn brings goldenrod and Queen Anne's Lace brightening the meadows. Winter with its openness gives long views from the hill and a chance to see tracks from deer, raccoon, possum or fox. Programs Our purpose and goal is to educate.