Glomma
Glomma is a mapped river in the YearMaps hydrographic index, part of the Glma system. River courses organise settlement, agriculture and frontier-making more durably than any political boundary, and this reach is indexed against the dams, lakes and cities within its catchment.
- Feature Class
- River
- System
- Glma
- Coordinates
- 61.37°, 11.21°
About Glomma
The Glomma or Glåma is Norway's longest and most voluminous river. With a total length of 621 kilometres (386 miles), it has a drainage basin that covers 13% of Norway's surface area, all in the southern part of the country.
Encyclopedic summary adapted from Wikipedia: Glomma (CC BY-SA 4.0).
Glomma in Depth
Geography
At its fullest length, the river runs from the lake Aursunden in Røros Municipality in Trøndelag county and runs into the Oslofjord at the town of Fredrikstad in Fredrikstad Municipality in Østfold county. Major tributaries include the Vorma River, which drains Lake Mjøsa, joining the Glomma River at Årnes in Nes Municipality. The large river Lågen flows into Lake Mjøsa, draining the large Gudbrandsdalen valley and significantly increasing the Glomma's flow.
Because it flows through some of the richest forest districts, it has historically been Norway's leading log-floating river. The combination of raw materials, water power, and easy transport has over the centuries encouraged industry along the Glomma.
Sections adapted from Wikipedia: Glomma (CC BY-SA 4.0).
Glomma: Key Facts
| Length | 604 km |
|---|---|
| Average discharge | 720 m³/s |
| Drainage basin | 42,441 km² |
| Source | Aursund |
| Mouth | Skagerrak |
| Drainage system | Glomma basin |
| Tributaries | Vorma, Rena, Flisa, Ua |
Facts from Wikidata Q214535 (CC0).
Major River Dossiers
Hand-written studies of the great river systems of history.
Connected Reaches
Nearby watercourses in the same drainage network.
Water Bodies in the Catchment
Settlements Along the Reach
Hydraulic Infrastructure Nearby
Surrounding Terrain
Glomma: Quick Answers
- Where is Glomma?
- Glomma is located in Norway, at 61.3715° N, 11.2146° E.
- Are there dams on the Glomma?
- No dam on the Glomma is recorded in the YearMaps dam index, which covers major structures only.
- Which river system is the Glomma part of?
- The Glomma is part of the Glma system.