River
Geum River
395 km from source to mouth · South Korea.
South KoreaFlows into Yellow Sea3rd longest in South Korea
In numbers
Length
395km
Average flow
210m³/s
Basin
10,000km²
Drop
337m
from 337 m to 0 m
Country
1
The journey
From source to mouth
395 km of river and 7 stops on the way: 3 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 337 m
- 237 kmDaecheong Dam
- 245 kmSintansin15,000 people
- 273 kmGeumgang Pedestrian Bridge
- 274 kmGeumnam Bridge
- 294 kmGongju72,435 people
- 309 kmGeumgang Bridge
- 334 kmBuyeo59,823 people
- 395 kmYellow Seaat 0 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in South Korea
At the mouth it carries 214 m³/s on average: an Olympic pool every 12 seconds. It drops from 337 m to 0 m, 0.9 m per kilometre on average. Its basin covers 10,000 km², about the size of LB. 3.5 million people live in it. Highest water: from August to September; lowest: from December to March. Dams and reservoirs hold back a large share of its water (22% of a year's flow).
Where to start
- GongjuLargest city on its banks · 72,435 people
- Cheongju International Airport/Cheongju Air Base (K-59/G-513) (CJJ)Nearest airport with scheduled flights, 44 km from the cityCar hire in SeoulDiscover Cars · Affiliate link↗
- On the water12 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
- May and OctoberThe best months to visit
Geum River, month by month
Highest water: from August to September
Lowest water: from December to March. Best months to visit: May and October.
From about 39 m³/s in the lowest month to 550 m³/s in the highest. An estimate: the monthly flow is modelled from the lowest and highest months of WaterGAP (RiverATLAS, 1971–2000) and the rain and snow along the river (WorldClim). Dams change the real rhythm. The chip is the average air temperature; below it, the month's rain.
Plan the trip
Plan the trip: boat trips, a bed by the river, a car
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
The basin
Geum River: the basin in numbers
9,776 km² of land send their water to this river. This is what lives on it.
- 3.5millionpeople live in the basin
- 363/km²people per km²
- 229maverage altitude of the basin
- 1,285mmof rain a year (basin average)
- 11.2°Caverage air temperature
- 5%protected areas
- 0.7%covered by lakes
- 1.5km³held in reservoirs
What covers the basin
- 51% Forest
- 22% Cropland
- 1% Pasture
- 10% Towns and cities
RiverATLAS (HydroATLAS v1.0, CC BY 4.0): land cover, people, protected areas, glaciers and dams over the whole basin upstream of the mouth.
Along the river
Geum River: what you find on the way
- 2Weirs
- 1Waterfalls
- 12Boat ramps
From OpenStreetMap, within 1.8 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Geum River in our other atlases
What our sister atlases know about the waterfalls on this river, the lakes it flows through, the beaches at its mouth, the mountains where it rises and the islands off its mouth.
1beach at the mouth or on the banksCoastya
23mountains at the sourcePeakyas
Beaches (1)
At the mouth (25 km) and on the banks, by Coastya
- Biin-haesuyokjang21 km away25.5°C
Mountains at the source (23)
Within 15 km of the source, by Peakyas
- Muryongsan15 km away1,492m
- Jangansan11 km away1,237m
- Seongaksan14 km away1,141m
- Deoktaesan13 km away1,113m
- Tokuyuzan9.9 km away
- Gosan14 km away
- Muyong-san15 km away
- Wolbong-san13 km away
15 more on PeakyasOpen Peakyas ↗
From space
The source and the mouth, seen from orbit


Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data 2016), CC BY 4.0. The glowing line is the river as drawn by RiverATLAS.
Photos
Geum River in pictures
Nearby
Rivers nearby
Where these numbers come from
| Name, length, places | Wikidata (Q489139) · CC0 |
|---|---|
| Course, profile, basin | RiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed along the river network from the point given by Wikidata |
| Flow | WaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0 |
| Climate along the river | WorldClim (RiverATLAS), 1970–2000 · CC BY 4.0 |
| Towns, bridges, dams | Wikidata · CC0; GeoNames · CC BY 4.0 |
| Along the river | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Our other atlases | Coastya, Peakyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; HydroLAKES · CC BY 4.0; NOAA OISST |
Every source and licence is on the data sources page.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.



