The Green Mountain Line (Chinese: 淡海輕軌綠山線) of the Danhai Light Rail Transit system is a light rail line in Tamsui District, New Taipei, Taiwan.

The route between Hongshulin Station and Tamsui District Office Station is elevated; the rest of the route is at-grade.

The line opened in December 2018[1] and runs from Hongshulin Station northward and turns west along Zhongzheng East Road, Highway No.

[2][3] Seven of its eleven stations are elevated, with the remaining four at ground level.

[4] Bike sharing service YouBike is available at seven stations.