A railway station was opened there on 13 August 1877 as Doughboy Hollow, which was later renamed Ardglen on 29 June 1893.

This tunnel is at the summit of the line at the watershed, with ruling grades of 1 in 40 approaching in both directions.

Doughboy Hollow Post Office opened on 16 November 1877, was renamed Ardglen in 1893 and closed in 1983.

The NSW Railways has been operating a hard rock quarry for over 100 years near Ardglen village.

[5] Ardglen is in the Liverpool Plains Shire local government area (LGA) and Buckland County.