A double stone wall.
Nihamad nan allup di dolan nan iMadyaw ti nada'dā'an.
The double stone wall (fences) of the houses in Mayawyaw are sound because they are paved with flagstone.
Typically the walls are constructed about 1 meter apart at the base, leaning slightly towards each other, the core consisting of hard-packed earth. The top is often covered with flagstone. A double stone wall is used as a stone fence around a homesite yard, as a reinforced retaining wall for a pond field bordering a runoff canal to prevent water from flooding into the field and breaking down the retaining wall, or as a wall at the source of an irrigation canal to divert water into the canal.