 In 1950, after nearly 14 years of growth, the local forester reported that the trees were only just beginning to appear above the canopy of scrub.While two years later in 1952 the maximum tree height was 10.5 metres with a diameter of about 25 to 30 cm.In 1977, the Forests Commission remeasured the trees (then aged 41 years) with a height of 40.3 metres and a diameter of 85 cm for the largest tree.