Delaware Run

Delaware Run is a tributary of the West Branch Susquehanna River in Northumberland County, Pennsylvania, in the United States.

It flows southwards and crosses under Pennsylvania Route 54 before making a sharp turn northwest.

[3] Most of the lower reaches of Delaware Run and its tributaries are considered impaired by the Pennsylvania Department of Environmental Protection.

[3] The entirety watershed of Delaware Run is in the ridge and valley section of the Appalachian Mountains.

[3] The Trimmers Rock Formation largely occurs in the northern part of the Delaware Run watershed.

[3] The basal outcrop of the Lower Helderberg Formation is located near the mouth of Delaware Run, although it is hidden under boulders and other debris starting south of the stream.

[4] The Hamilton Group occupies 55% of the Delaware Run watershed and the Trimmers Rock Formation is found in 35%.

[3] The main type of soil in the Delaware Run watershed is the Berks-Weikert-Bedington series, which is a silt loam with shale.

[3] The Berks-Weikert-Bedington series occurs in the northern, central, and south-central parts of the Delaware Run watershed.

[3] Going from north to south, Delaware Run is the first significant stream to join the West Branch Susquehanna River in Northumberland County.

On the aforementioned day, Conrad Weiser, a German, and three Native Americans journeying to Onandago passed by the stream, pausing "within the shadow of the great pines of Delaware Run.

[6] On February 3, 1769, Lieutenant Daniel Hunsicker purchased a tract of land a short distance south of the mouth of Delaware Run, near modern-day Watsontown.