The original Great Zig Zag was a feat of civil engineering required to descend the Blue Mountains before the construction of tunnels replaced it in 1910.
The line relies on gravity and reversing maneuvers to navigate a grade that is otherwise too steep for traditional locomotives.
Construction of the original line began in 1866 and required the excavation of tunnels and sandstone cuttings by hand.
The railway operates on standard gauge track, consistent with the historic main line standards of the era.
The site includes large stone viaducts, which are considered significant examples of colonial-era Australian masonry.
The project is managed and operated largely by volunteers dedicated to the preservation of railway heritage.
The Zig Zag Railway is a heritage steam railway operating on the original 1869 Great Zig Zag engineering masterpiece near Lithgow. The track layout uses two reversing stations to traverse the steep descent of the Blue Mountains, allowing trains to travel back and forth across the slope. It currently operates restored steam and diesel locomotives hauling historic carriages through the scenic Wollangambe valley. The railway was constructed by the New South Wales Government Railways to connect Sydney to the interior. Following a period of closure for extensive infrastructure upgrades and safety certification, the line resumed public operations in 2023. Visitors ride along the sandstone cuttings and massive stone viaducts that characterize the heritage-listed alignment. The site functions as a living museum, preserving the technology and operational methods of 19th-century rail travel.
The elevated viewing platforms near the main station offer the best vantage points to capture the locomotive crossing the stone viaducts.
Bring a light jacket as the high elevation of the Blue Mountains often results in cooler temperatures than in Sydney.
Check the website for specific departure dates as the schedule is primarily focused on weekends and public holidays.
Book your seats in advance via the official website to ensure availability on preferred train times.
Do not attempt to walk along the tracks outside of designated viewing areas as the railway remains an active operational site.
Operations are primarily scheduled on weekends and during school holiday periods; the railway is typically closed to public services on weekdays.
Closed-toe shoes are recommended for walking around the heritage station precinct and gravel platform areas.
