How old are these walls?

journal > 2017 > Qingquan 清泉 in Wufeng 五峰鄉, Hsinchu 新竹 > How old are these walls?

Qingquan 清泉 in Wufeng 五峰鄉, Hsinchu 新竹 DSC_8230

How old are these walls?

Location: 24°37'36" N, 121°6'10" E, 497m; near: Wufeng, 五峰, map
Camera/lens: NIKON D40, 18-55mm f/3.5-5.6
Aperture: 16.0, Shutter speed: 1/1000, Focal length: 18.0 mm, ISO: 1600, Bias: 0
Date/Time: 2017:01:28 13:53:05
Average color: gray27