# The Wu 午 mountain

> A house facing 180° is in the Wu 午 mountain. Wu covers every bearing from 172.5° up to 187.5°, within the Li 离 trigram in the South, element Fire. A house facing Wu sits Zi 子 (352.5° – 7.5°) — described as sitting Zi, facing Wu. To be sure, measure the facing as an exact degree.

## Facts about the Wu mountain

- Name: Ngọ · Wu · 午
- Degree range: 172.5° – 187.5°
- Center: 180°
- Trigram: Li 离 (157.5° – 202.5°)
- Lines (bottom to top): yang, yin, yang
- Direction: South
- Element of the mountain: Fire
- Element of the trigram: Fire
- Three Yuan dragon: Heaven Yuan dragon
- Opposite mountain (sitting): Zi 子 · 352.5° – 7.5°
- Neighbouring mountains: Bing 丙 · Ding 丁
- Birth-year mountain: Birth-year mountain of people born in a Wu (Horse) year, with years counted from the Start of Spring.

## When measuring and setting polarity

The closer a facing is to the 172.5° or 187.5° boundary, the more easily a measuring error pushes it into Bing 丙 or Ding 丁. When a reading falls within 1° of either boundary, measure again at several points before setting polarity.

Once polarity is set, every room, door or item lying within the 172.5° – 187.5° sector, seen from the center of the house, belongs to Wu.

The three mountains of Li 离: [Bing 丙](https://myhomecheck.ai/learn/24-mountains/binh) · [Wu 午](https://myhomecheck.ai/learn/24-mountains/ngo) · [Ding 丁](https://myhomecheck.ai/learn/24-mountains/dinh)

## Questions about Wu

### Is a house facing 180° a South-facing house?

Yes, but that is not precise enough. The South spans 45° (157.5° – 202.5°) and holds three mountains, Bing, Wu, Ding; a house facing 180° is in Wu. Naming the mountain tells apart houses only a few degrees from each other.

### What does a house facing Wu sit on?

It sits Zi 子, 352.5° – 7.5°. Sitting and facing are always exactly 180° apart.

### Whose birth-year mountain is Wu?

It belongs to people born in a Wu (Horse) year, counted from the Start of Spring rather than Lunar New Year. When the main door or an active, heavy item falls exactly in Wu, say precisely whose Wu birth-year mountain it touches.

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Original page: https://myhomecheck.ai/learn/24-mountains/ngo  
Other languages: [Tiếng Việt](https://myhomecheck.ai/vi/tri-thuc/24-son/ngo/index.md) · [中文](https://myhomecheck.ai/zh/learn/24-mountains/ngo/index.md)  
Updated: 2026-10-21