The 126 acres that make up Diabase Farm sit at the base of Jericho Mountain in Bucks County. The farm was named for the diabase rock along the crest of the mountain.

History
Diabase Farm has been in continual farming since 1763, when it was designated part of William Penn’s 7500-acre "Manor of Highlands." In 1932, the property was purchased by George and Charlotte Dyer, who used it as a steer and sheep farm until 1984, when they donated it to NLT. The crop land on the farm is still rented to a local farmer who raises a hay crop.

Highlights
The upper reaches of the property, along the lower slopes of Jericho Mountain, are forested with mixed hardwoods and pine plantations. The lower acres are cropland and meadows. A headwaters tributary of Pidcock Creek flows through the property. This small, unnamed stream is dammed in two places on the property, creating two small ponds.