This preserve goes by a few names, officially it is known as The Nature Conservancy's Dick and Nancy Eales Preserve at Moosic Mountain. It usually goes by Eales Preserve or simply Moosic Mountain. The best description of it's landscape comes right from the official website:
Contrary to its name, the Moosic Mountain “barrens” comprise a healthy mosaic of stunted pine and oak forest dominated by huckleberry, blueberry, rhodora and other low-lying shrubs that attract a broad array of birds, butterflies and moths—including the globally rare sallow moth and barrens buckmoth. - https://www.nature.org/en-us/get-involved/how-to-help/places-we-protect/dick-and-nancy-eales-preserve-at-moosic-mount/
This preserve is approximately 2,250 acres in size and is home to 11 named trails and a few unnamed trails. It also connects into State Game Lands #300. Hiking, hunting (in cooperation with Pennsylvania Game Commission regulations), birding and biking are allowed.