It runs 8.3 miles (13.4 km) from a junction with the SEPTA Main Line just north of Glenside to Warminster, where it meets the New Hope Railroad.

Today it is owned by SEPTA and hosts Warminster Line commuter rail service.

The North East Pennsylvania Railroad was incorporated on December 14, 1870, to build northeast from the North Pennsylvania Railroad's main line at Glenside to Hatboro.

[6] The Reading, with SEPTA's support, extended electrification from Hatboro to Warminster on July 29, 1974.

[4] With the Reading's final bankruptcy in 1976, the New Hope and Ivyland acquired the section of the New Hope Branch between Ivyland and Warminster, while the Glenside–Warminster section was conveyed to Conrail.