thumb|View of the Oker valley from the Treppenstein The '''''Treppenstein''''' is a rock formation in the Oker valley in the Harz mountains of central Germany. It lies on the trail from the Romkerhall Waterfall to the ''Kästeklippen''. The rocks consist of granite and have clearly undergone so-called "wool sack weathering" (''Wollsackverwitterung'').<ref>[http://www.harzlife.de/extra/treppenstein.html Harzlife]. Retrieved on 21 May 2010</ref>
The ''Treppenstein'' is a popular destination and part of the system of checkpoints (no. 117) in the ''Harzer Wandernadel'' hiking trail network. The summit has safety railings and may be climbed using steps hacked out of the rock and flights of stairs attached to the rocks. From the summit there is a view towards the west. In addition, part of the rock formation, the ''Kleine Treppenstein'' is used for rock climbing. The routes here are rated as Grade VI (UIAA).<ref>[http://dav-felsinfo.de/html/index.php?option=com_davfelsen&task=view&catid=171&id=3113&Itemid=213 Kleiner Treppenstein – Okertal] {{Webarchive|url=https://web.archive.org/web/20110718224240/http://dav-felsinfo.de/html/index.php?option=com_davfelsen&task=view&catid=171&id=3113&Itemid=213 |date=2011-07-18 }} im Felsinformationssystem des DAV. Retrieved on 21 May 2010</ref>
== References == <references />
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Category:Rock formations of the Harz Category:Climbing areas of Germany Category:Rock formations of Lower Saxony {{LowerSaxony-geo-stub}}