In geomantic omen, what kind of mountain elephant is a sheep wearing an official hat?

In geomantic omen, a sheep wears an official hat, which is a treasure mountain elephant. In the geomantic omen of the Book of Changes, the official hat refers to the exposed part of the top of the surrounding buildings, which is "convex" in shape, just like the black hat of ancient officials, so it represents a land of geomantic omen in geomantic omen.