Village Boundary Stone — Mau Ping Ancient Trail [????- ]

Inscription:

宅    吳
    山
    介

Read as 吳宅山界 "mountain boundary of the Ng clan estate".

Likely relates to the nearby Mui Tsz Lam village, (originally) inhabited by the Ng clan. It no longer stands upright and is tilted face-down.

An identical example can be found at nearby Nui Po Au (Turret Pass).