From the dedication
PDF:
The only such public treehouse in the Tri-State, this universally accessible treehouse has a series of ramps that provides access to all, including children with special needs who are routinely confronted with barriers to fun and play in their daily lives. Built in lush Mt. Airy Forest, the treehouse is a testament to community spirit, built by volunteer labor and donations.
Treehouse facts:
Total Square Footage (including ramp and landings): 1,500 square feet
Height of Treehouse: 14 feet
Width of Ramp: 6 feet
Wood used to build treehouse: Black locust, sugar maple, black maple, ipÍ, cedar shakes
Trees Connected to Structure: 12 trees
Expected Life of Treehouse: 50+ years
Estimated Volunteer Hours to Build: 4,000 hours
Designers: Forever Young Treehouses (Burlington, Vermont)
Forever Young Treehouses are not only ADA-compliant, but also safe, unique in character and craftsmanship, and use building methods that protect the health of the trees.
Project cost: $500,000
Visit Instructions:Date, time-of-day, your photo, preferably including yourself or a member of your party, & desciption of your impressions
In good Groundspeak tradition, RESPECT PRIVATE PROPERTY. Most treehouse owners are proud of their treehouse and would be happy to show it to you if asked. Be sure to obtain permission to enter private property. Photos and GPS coordinates may be taken from the street or nearest appropriate vantage point.