Lower-water canal lock and staffed maintenance yard (Canal Boats and Lock Operations)
Closed upper gate holding raised pound, lower gates open beside equal-level chamber and downstream water, a complete cabin boat in chamber, moored workboat and furnished roofed lockside buildings.
- 格式
- GLB
- 文件大小
- 4.4 MB
- 三角面
- 228,410
- 许可
- CC0 1.0