[2] Rocky Run joins the Susquehanna River 171.48 miles (275.97 km) upstream of its mouth.

[3] In 1909, the discharge of Rocky Run was measured by the Pennsylvania Department of Health to be 170,000 gallons per day.

[4] In the early 1900s, the concentration of total solids in the waters of Rocky Run was measured to be 180 parts per million.

[4] A 1911 report by the Pennsylvania Department of Health stated that waters of Rocky Run were "of excellent quality in every respect".

[5] An abandoned anthracite mine is located in the northern part of the watershed of Rocky Run approximately 1.6 miles (2.6 km) upstream of its mouth.

The report noted that the tunnels had a low discharge and their waters were slightly acidic and stated that during rainy conditions they might drain into Rocky Run.

In the watershed's northernmost and southernmost reaches, the surficial geology features bedrock consisting of sandstone and shale.

[4] The stream was described as flowing "virtually unseen" through a forest in the 1978 Luzerne County Critical Areas Inventory.

[6] In the early 1900s, Rocky Run was considered for use as a water supply for the Insane Hospital and Almshouse in Retreat, Pennsylvania, on the opposite side of the river in Newport Township.

The construction of a dam at a narrow part of the stream's valley approximately 1 mile (1.6 km) upstream of its mouth was proposed.

The water was to be supplied to the Insane Hospital and Almshouse by means of an 8 or 10 inch pipe with a length of 6.3 miles (10.1 km).