Raiermoos was originally a large lake that formed in clayey glacial moraine about 12,000 years
ago. The first inhabitants settled here in lake dwellings.
Today Raiermoos is a biotope and habitat for endangered animals and plant life.
Reeds, cattails, rushes and marsh clover border the lake. It offers a habitat for frogs, newts and snakes. Migratory birds like herons and storks will find peace here, and a place to rest. Red-backed shrikes, wrens and nightingales brood in the biotope alongside various warblers and tits. The flowering grasslands
are a haven for crickets, grasshoppers, butterflies and praying mantis. Other biotopes in the municipality of Natz-Schabs
include Sommersürs in Viums, Zuzzis and Laugen in Natz. The nature trail around the Raiermoos biotope is a lovely walk. You can hear the songs of rare birds and observe the wealth of wildlife from the shelters here.