Haldenstein Castle, Grisons, Switzerland

Description

Castle ruin above Haldenstein near Chur, Switzerland (https://en.wikipedia.org/wiki/Alt-Haldenstein_Castle or, in German, [https://de.wikipedia.org/wiki/Burg_Haldenstein](https://de.wikipedia.org/wiki/Burg_Haldenstein)). Recorded in April 2014 in cooperation with Jürg Spadin, AD GR, by UAV mapping. See https://goo.gl/2oiQhp for details.