There is a mountain range in Namibia called Gamsberg. It is famous for its clear skies and an astronomical observatory is situated nearby.
Gamsberg, or just Gams, is the name of a major base metal mine in Namaqualand
In both of the above cases the local pronuciation is not obvious to the uninitiated. It is XUMZ-Bare-X, where X represents the sound of the letters ch in the Scottish pronunciation of 'loch'.