the railroad was originally built from the eagles mere railroad near eagles mere 3.5 miles (5.6 km) to the lumber mill at sonesville on kettle creek. because the eagles mere railroad was a narrow gauge, the susquehanna and eagles mere railroad was built to a gauge as well. the line was extended in 1904 down kettle creek to ogdonia, then along loyalsock creek to the village of hillsgrove and the tannery there, a total of 10 miles (16 km) of new track. in 1905 and 1906, the railroad was extended one last time 10 miles (16 km) northwest from hillsgrove to the lumber boom town of masten in cascade and mcnett townships in lycoming county. the susquehanna and eagles mere railroad was abandoned in sections between 1922 and 1930, as the lumber it was built to transport was depleted.