The two Sections on the Big Erlauf River are Thormäuer I + II. For the Big Erlauf River is awarded in its entire length as one license. The offered sections without nearby streams are 12 kilometers long (about 7.4 miles) with a width of 12-18 meters.  The River has a strong changing character and belongs to the most beautiful alpine rivers of Europe.  The two sections of the Erlauf are situated in a nature park called the “Ötscher – Thormauer”.
The fish population of the Grossen Erlauf consists primarily of the brook trout, rainbow trout and grayling.  Permitted fishing gear consists of fly rods with artificial flies.
Owning an official guest card for the province of Lower Austria is required.