Comment, Like, & Favorite
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 34 Times - Last Visitor from Kiez, 12 - Germany on 06/14/2014 at 12:06 AM
copy and paste to your website / blog - preview