The lake is depicted on
Gerhard Buhrmann's map of Skåne from 1684 as
immel siö. It appears that the name was previously spelled with an extra "e" (Immelen). Today, people sometimes say "Immelsjön" to distinguish the lake from the village of the same name. In 1750,
Carl Hårleman presented a proposal for a canal connection from the Småland border via
River Helge and over Immeln down to Kristianstad. In 1753, he had his proposal printed, but it never gained any traction. In 1844, a proposal was made to lower the water level of Immeln in order to gain agricultural land. Long processes followed, but no lake lowering ever took place. At the beginning of the 20th century, there were renewed attempts, which again did not lead to any results. In 1885 the Kristianstad-Immelns Railway was inaugurated, which led the shore owners around the lake to form a steamboat company Immelns Ångslups AB for traffic on the lake. Mostly barge traffic with timber and firewood, but there was also passenger traffic. After the opening of the
Sölvesborg-Olofström-Älmhult Railway, however, the number of passengers decreased and in 1926 the traffic was discontinued. Barge traffic across the lake continued, however, until the 1930s with stones from Rörvik to Immeln station and with wood until 1946 when the last barges were lowered into the bay at Dönaberga. Harry Martinson's parents lived in Nyteboda near Immeln, where his father was a merchant, and he describes the lake in
Flowering Nettle as Elmen. == Outdoor activities ==