330,000 photographs and 200 tonnes of documents from nearby Dounreay power station. The transfer of the whole archive will be complete by 2022 and will include 80,000 boxes of files from Sellafield and a similar number held by Magnox Ltd. The digital archive comprises 30 million records dating back to the late 1940s. The archive was supplemented by the transfer of a collection of 1950s era nuclear-related journals from the library of the North Highland College. Caithness archive The Caithness county archive had previously been housed at the Caithness Archive Centre in Wick Library but had outgrown the storage facilities there. It comprises charters, minutes, correspondence, maps and photographs with the earliest records dating from 1589. References Archives in Scotland Nuclear technology in the United Kingdom Caithness