Silage Silo above Pokfulam Village [????- ]
The location is shown on the OSM map: https://gwulo.com/node/54455#19/22.26119/114.13770/Map_by_OSM-Markers/100
It’s a silo - there are still two in existence - [this one and the one above Victoria Road]. They were unique in that they were built into the hillside, enabling workers to take the Guinea grass (aka Napier Grass and elephant grass) up to the opening at the top, then weighing it down with stones to expel the air. This allowed the grass to ‘ferment’ and turn into silage for winter feed, which was then extracted from the opening at the bottom. Difficult to date exactly, but there is some fairly strong evidence to show they were likely build around late 1800s, based on a Dairy Farm ‘manual’ published in 1919.