Ben Nevis the summit only to find "fragments of earthen and glass ware, chicken bones, corks, and bits of paper". It was not until 1847 that Ben Nevis was confirmed by the Ordnance Survey as the highest mountain in Britain and Ireland, ahead of its rival Ben Macdhui. The summit observatory was built in the summer of 1883, and would remain in operation for 21 years. The first path to the summit was built at the same time as the observatory and was designed to allow ponies to carry up supplies, with a maximum gradient of one in five. The opening of
Ben Nevis in Scotland for ice climbing. The summit, which is the collapsed dome of an ancient volcano, features the ruins of an observatory which was continuously staffed between 1883 and 1904. The meteorological data collected during this period are still important for understanding Scottish mountain weather. C. T. R. Wilson was inspired to invent the cloud chamber after a period spent working at the observatory. "Ben Nevis" is an Anglicisation of the Scottish Gaelic name "Beinn Nibheis". "Beinn" is the most common Gaelic word for "mountain", "Nibheis" is variously understood, though the word is commonly translated as "malicious" or "venomous". An