Loch Kinord was partially drained during the early 19th century, leading to level of the loch being lowered by about 1 metre. In 1888 Loch Kinord was further altered in order to provide hydro-electric power for Dinnet House. In 1949 the Muir of Dinnet was identified as a potential national nature reserve by the Scottish Wildlife Conservation Committee, however this was not acted upon at the time. During the early 1970s it was suggested that the area be made a country park, however the area was instead designated as a Site of Special Scientific Interest in 1971. In 1977 the Muir of Dinnet became a national nature reserve as part of the celebrations surrounding the Silver Jubilee of Queen Elizabeth.