River Glomma, also known as Glomma, is the longest river in Norway, stretching approximately 600 kilometers. It flows through several municipalities, including Oslo, and eventually empties into the Fjord at Fredrikstad. The river is an important waterway for transportation and has historically supported local industries. The river's basin is rich in biodiversity, providing habitats for various fish species, such as trout and pike. Additionally, the surrounding areas are popular for outdoor activities like fishing, hiking, and canoeing, making River Glomma a vital natural resource for both the environment and local communities.