Bonbon (Penpen) mountain is located at the upriver of Lanyang river in Yilan County and is close to county border with Taipei County and Taoyuan County. The Japanese established Greater Nan-ao detaining line here. The picture should be one of the dispatch office of a detaining line.
Dispatch office of detaining line on mount bonbon
- NCL Special Collection / 4378 / (N/A) / About 1910s / 《Faces of the Century (Part I)》