struck boulders which were obstructing the line. Additionally, the driver had also reported that his train had collided with two boulders that were on the line. An investigation was opened into the accident by the Rail Accident Investigation Branch with ScotRail assisting. Network Rail also assisted in the investigation. The report of the investigation into the accident was published in July 2011. The investigation found that the boulder had been dislodged due to a combination of being lifted by tree roots and soil erosion. The inadequacy of the system of inspection of the area was cited as a possible causal factor. Five recommendations were made with respect to the management of vegetation and identification of the risk of rockfalls, with a sixth recommendation in respect of the security of lighting diffusers in the event of accidents. See also 1995 Ais Gill rail accident 2010 Merano train derailment References External links Video of the crash scene (BBC) 2010 in Scotland Railway accidents in 2010 Natural disasters in Scotland Derailments in Scotland Accidents and incidents involving First ScotRail June 2010 events in the United Kingdom Landslides in 2010