This tree, growing at a protected and competition-free site, is the largest Black Walnut in Lancaster County and the fifth largest in the state of Pennsylvania. In 2013 it measured 187 inch- es in trunk circumference, 85 feet in height, and 82 feet in spread (pabigtrees.com).
This amazing species, highly prized for its timber, nuts and beauty, has occa- sionally brought $10-20K for a single mature tree. As a result, large speci- mens have been nearly eliminated (through harvesting) in some parts of the country.
[The first two photos are from pabigtrees.com]