5, Schooley's Mountain Store, the William W. Marsh House, Christadelphian Bible Camp, the former Heath House Hotel, former Forest Grove Hydropathic Institute, Mine Hill Farm, the Marsh Mine and several private residences and commercial buildings.

[3] The area grew as a nineteenth century summer resort built around a mineral spring on Schooley's Mountain near a brook that flowed to the Musconetcong River.

Schooley's Mountain Springs were rich in iron, termed chalybeate, and said to have healing powers.

The Highlands Presbyterian Church on Heath Lane was built in 1870 and has a three-story bell tower.

The William W. Marsh House at 13 Heath Lane was built c. 1865 with Italianate style and is now used by the Liebenzell Mission and named Eben-Ezer.