Coalport, United Kingdom
In 1786 a tunnel was built at Coalport, in the Ironbridge Gorge, Shropshire, England. During construction a spring of natural bitumen was discovered which was subsequently tapped and the tar sold for medicinal purposes or boiled into pitch.
October 8th, 2012
Viewed 51 Times - Last Visitor from New York, NY on 02/17/2015 at 6:15 PM