Rivers of Thailand

Basin Yom

Ngao River

แม่น้ำงาว

A tributary of the Yom River in Lampang province.

Map of the Ngao River
The dark line is this river; the mid-blue lines are its named tributaries.

Key facts

Length
about 48 kmMeasured along the river on this map; official figures can differ with the method used
Source
Lampang province
Flows into
Yom River, Lampang province
Basin
Yom
Provinces (1)
Lampang

Ngao River water level today

2 automatic gauging stations on this river, highest water relative to the bank first. As of 30 Sep 2026, 00:30

StationLocationLevel (m MSL)Of bank-fullStatusMeasured
บ้านหลวงเหนือNgao District, Lampang269.6248%Normal29 Sep 2026, 23:00
Maenam Ngao bridgeWiang Kaen District, Chiang Rai381.4728%Low30 Sep 2026, 00:30

Data from the National Hydroinformatics Data Center (ThaiWater), HII, refreshed every 10 minutes

Frequently asked questions

Which provinces does the Ngao River flow through?
The Ngao River flows through 1 provinces: Lampang.
How long is the Ngao River?
The Ngao River is about 48 km long, measured along the river on this map. Official figures can differ slightly with the method used.
Where does the Ngao River come from?
The Ngao River rises in Lampang province.
Which river does the Ngao River flow into?
The Ngao River flows into the Yom River in Lampang province.
What is the Ngao River water level today?
Of 2 gauging stations, 0 are over the bank and 0 have high water. Data as of 30 Sep 2026, 00:30.
What is the Ngao River called in Thai?
In Thai the Ngao River is แม่น้ำงาว.

Other rivers in the Yom basin

Yom River