On this day in 1887, 137 years ago, 48-year-old labourer James Matheson was struck on his side with great violence after a shot was fired in Glenfarg South Tunnel, propelling a stone towards him as he stood 40 yards away.
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Portals of longer tunnels
Portals of longer tunnels
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Discarded for a younger model next door, Colwall Old Tunnel is one of the country's longest disused bores at 1,567 yards.