TrigpointingUK

Thanks for the pics. I too saw several of these around Zermatt and was told by a local that they were used by photographers to retain the same tripod positions for 'all year round calendar views of the mountains'. It didn't ring true on the day and your explanation is far more plausible. Swiss maps ...

Certainly looks like one to me. Are there any missing ones in the area I wonder? Perhaps a farmer has 'moved' one for logistical reasons. Certainly worth and expedition to verify any plates / metalwork etc.