Wikipedia
Tragöß
Tragöß (or Tragoess) is a municipality in the district of Bruck-Mürzzuschlag in Styria, Austria. It is home to Grüner See (Green Lake), which dries out almost completely in the autumn. In the spring the lake is filled with snow melt runoff. This gives the lake crystal clear water, the existing rocks and meadow give the lake its green colour.