Lebanon Valley

The Lebanon Valley is a geographic region that lies between South Mountain and the Ridge and Valley Province of eastern Pennsylvania, United States. The valley lies almost entirely within Lebanon and Berks counties in Pennsylvania. Portions of the valley lie in eastern Dauphin and northern Lancaster counties in Pennsylvania. It is bound to the south west by the Susquehanna River, and its northeastern terminus is the adjoining Lehigh Valley.

The Lebanon Valley is part of the much longer Great Valley, a natural lowland route running northeast-southwest and lying just inland from the Blue Ridge Mountains and South Mountain. The Great Valley, including the Lebanon Valley, has historically been admired for its fertile agricultural land. Beyond the southwestern end of the Lebanon Valley, the Great Valley is known locally as the Cumberland Valley. To the northeast the Great Valley is known locally as the Lehigh Valley. Lebanon Valley College is named for the region. The valley lies entirely within the Chesapeake Bay watershed.