The author noticed severe damage to ground from big timber machines during the 1990s. Later he found that this destroyed the original pinewood soil and vegetation, and led to water-logging and wind-throw of standing trees beside machine ruts. In 2011-15 he surveyed this in many woods on Deeside and Donside, owned by the Forestry Commission and private owners. In every case, mistreatment of woodland by big timber machines breached the conditions of The UK Forestry Standard 2011, as authorised by the FC. Machine use severely damages scenery and the public's ability to walk or ski safely. It has damaged and polluted watercourses. The public pay for this vandalism, because the UK timber industry depends on taxpayer's subsidies. The monster machines should be banned, the hypocritical and wasteful FC chopped.