Øyeren
Øyeren is a lake in the Glomma River watershed, southeast of Lillestrøm. It is located within the municipalities of Enebakk, Skedsmo, Fet, and Rælingen in Akershus county and Spydeberg and Trøgstad municipalities in Østfold county.
Lake Øyeren is the ninth largest lake by area in Norway with a surface area of. It is above sea level and deep.The name
The name of the lake is derived from øy f 'island; flat and fertile land along a waterside'.An area that includes parts of the northern end of the lake is an established nature preserve, listed as a Ramsar site.
