Lebanon is located north of Round Valley Reservoir and east of Clinton. It is a charming small village, the center of which has changed little in the past century. The borough has a total area of 0.9 square miles, all of which is land. It is an independent municipality located entirely within Clinton Township. The Borough features Victorian homes and quaint farmhouses. Nearby Round Valley Reservoir is ideal for everything from camping to water sports. Miles of hiking and biking trails begin in High Bridge, and nearby Raritan River runs through the breathtaking Ken Lockwood Gorge into Lake Solitude. Another popular recreational site is the 63-acre Hunterdon Country Arboretum.