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Explore the forest and meadow habitats of The Andorra Natural Area.

Once the site of Andorra Nurseries, it now serves as an outdoor classroom for children throughout the Philadelphia region.

Black Farm Ruins: The stone foundation is all that remains of this old farmhouse. (Meadow loop)
Great Beech Tree: In 2006 this tree was declared a PA state champion European Beech. It was planted over 150 years ago by Richard Wistar. In recent years, disease has caused its decline, and in 2018, a storm took out a major limb.
Little Library: Located on the back porch of the Tree House, and donated by the Friends of Andorra Library, this lending library contains books, recipes, and seeds.
Nursery trees: Look throughout the area for remnants of trees planted for Andorra Nurseries. Japanese Maples and Kobus Magnolia trees are some of the many that remain.
Sawyer's Grove: Designed by friend and former Tree House educator, Laura Kennedy, Sawyer's Grove is a natural play area and includes a mud kitchen. Children should be supervised at all times, and stationary materials should not be taken apart, and all play is done at your own risk.
Stormwater Management Features:

Detention Ponds: At Parking Lot 1 (P-1) and behind the Tree House, detention ponds were built to manage stormwater. Look for dragonflies and tadpoles in the warm months, and native wetland plants throughout the year.

Green Roof: Look on top of the back porch to see the plants that grow as they absorb stormwater and sunshine.

Swales and Step Pools: These rock channels and swales direct, slow, and filter stormwater.

For the benefit of Andorra’s visitors and wild residents, please observe the following guidelines:

Bikes are not permitted on Andorra trails, but are welcome elsewhere in the Wissahickon.
Keep pets on a leash. Carry out pet waste.
Do not remove plants or animals.
Stay on trails.
Composting toilets are available in front of the Tree House at P-2.
Report any unsafe conditions to the staff at the Tree House.
Leave no trace.