Watchung Mountains

(redirected from First Watchung Mountain)

Watchung Mountains,

two long low ridges of volcanic origin, from 400 to 500 ft (122–152 m) high, N central N.J. They curve c.40 mi (60 km) between Paterson and Somerville. Basalt is quarried there. The Watchungs have been the scene of extensive suburban development since the 1970s.