Yddal is one of the biggest and finest pine forest areas in the county. The rich forest resources provided an important foundation for the settlement of Yddal. Up until about the 1950s, there were three farms here. Where the lumberjacks couldn't get to, the trees grew very big and can be over 300 years old.
There is a lot of trout and a large char population in Lake Rylandsvatnet. The lake was stocked with char, probably in 1907. The promoters of the project were the family Ameln, who owned eight mills in Rylandsvågen and parts of the Ryland farm.
Otterstadstølen lies in an idyllic grassy plain surrounded by rich forest, but also with high mountains close by. The mountainsides are steep and typical of this part of the county. The same cannot be said about the forest. This spruce forest has been able to develop freely for hundreds of years. Otherwise in the county, only Voss has spruce forest.