Today, the mountain and its accompanying lake act as a vital water supply to Central New Jersey, while at the same time providing numerous recreational opportunities to the region.

[6] The claim exists today as a legend, and no evidence has ever been found confirming Plantagenet's story of a ‘Raritan king’.

[6] Two famous names from New Jersey's colonial history owned land on the north slope of Cushetunk Mountain in Potterstown (part of Readington and Clinton Township).

[7] Historically, wildlife at the mountain included apex predators that are no longer found in the region.

The intrusion occurred when the Newark Basin, an aborted rift zone that formed as Pangaea began to break up, was still volcanically active.

[10] Both Cushetunk Mountain and the Watchungs were elevated after millions of years of erosion stripped away the overlying sandstone and shale strata and exposed their durable trap rock masses to the surface.

Instead, the mountain's shape seems to be the result of an intruding sheet of magma becoming dramatically flexed as it penetrated local strata.

[12] Occurring just south of Molasses Hill Rd in Clinton Township, the overlap is significant for two reasons.

Second, the trap rock comprising the intrusion at this location is fine grained and unlike the dense, coarse diabase common to Cushetunk Mountain.

[4] Groundwater seeps, particularly on the northern slopes, provide habitat to amphibians, while outcrops of trap rock offer ideal environments for small reptiles.