South of the lake is the Reither Moor, a raised bog resulting from the silting up of the Wildsee in which mountain pine trees grow.

Emperor Maximilian I used it for fish farming and had lampreys introduced, which is why the lake also bore the name Lampretensee.

According to limnological research, the lake has a low to medium nutrient content.

[1] The Wildsee is threatened by silting up as a result of the sediment transported to it by the Haglbach.

In future a pond will be excavated east of Innsbrucker Straße in order to trap the sediment.