25 years wild Sihlwald
A small histerbeetle crawls between moss-covered tree roots and perforated trunks. It is the symbol of the return of the wilderness. The Sihlwald has not been managed for 25 years. Rare species of fungi and lichens, as well as beetles, such as the abraeus parvulus beetle, have found a home here again – a really wonderful developement!
To mark the anniversary, 12 exciting events (German only), a new hiking route, and various blog posts await you in the Wildnispark Zurich. In addition, the newsletter also accompanies the abraeus parvulus beetle throughout the year and follows the fascinating history of the Sihlwald.
Deadwood in the Sihlwald
Over 6,000 species depend on it
The name «deadwood» can be misleading, as broken branches and dead trees ensure the survival of many species. One of these is the abraeus parvulus beetle, a primeval forest relict species that depends on natural forest structures.

©Wildnispark Zürich / Mirella Wepf
Exciting events based around the anniversary
Excursions, guided tours and courses in and around the Sihlwald
This year, the Wildnispark Zurich is focusing on the Sihlwald, its inhabitants and what has changed over the last 25 years.
Hiking tip
Anniversary route "25 years of the wild Sihlwald"
The Sihlwald has been allowed to develop freely for a quarter of a century. The Wildnispark Zurich Foundation has put together an anniversary route for interested visitors to explore the emerging wilderness here. Illustrated PDFs of the hiking tip (in German) for download.
The past of the Sihlwald
The Sihlwald as a commercial forest
For a long time, the Sihlwald forest served as a wood supply for the Fraumünster Abbey and later for the city of Zurich.
The zones in Sihlwald
What distinguishes the Nature Discovery Zone from the Core Zone?
The Sihlwald Nature Discovery Park is divided into two zones: Nature Discovery Zone and Core Zone. In the Nature Discovery Zone one can move around freely, in the more strictly protected Core Zone one is required to stay on the paths.
They are returning!
The rare species in the Sihlwald
The Abraeus Parvulus beetle, the Flaviporus Citronellus fungus and the Green Shield-Moss are among the rare species that can be found in the Sihlwald today.