[DOC] [TLE] Mine railway - Wikipedia [PAR] A mine railway (or mine railroad, U.S.), sometimes pit railway, is a railway 
constructed to carry materials and workers in and out of a mine. .... The tram (or 
dram) cars used for mine haulage are generally called tubs. ... By the time of the 
first steam locomotive drawn trains, most rails laid were of wrought iron which 
was... [DOC] [TLE] Steam locomotive - Wikipedia [PAR] A steam locomotive is a railway locomotive that produces its pulling power 
through a steam ... The first full-scale working railway steam locomotive was also 
built by Richard ... The oldest continually working steam engine in the world also 
runs in ... typically of a solid or liquid fuel, with the by-product of hot combustion 
gases. [DOC] [TLE] Train Simulator 2017 on Steam [PAR] Some of the north east of England's oldest and most important railway lines come 
.... The wonderful world of Welsh narrow gauge comes to life in Train Simulator 
with ... Jackson Churchward, sought out designs for modern steam locomotives 
that .... remote but bustling mining towns; classic wooden passenger cars to carry
... [DOC] [TLE] RAILROAD [PAR] To produce that product it requires tracks, cars, locomotives, repair shops, ... His 
engine actually pulled a short train of cars uphill on a coal-mine railway in ... The 
world's first common carrier railroad (that is, one for public use) to use steam .... 
The earliest track was built of wooden stringers faced with iron straps or they 
were... [DOC] [TLE] Railroads facts, information, pictures | Encyclopedia.com articles ... [PAR] The earliest railways in the United States were short, wooden railways built by ... 
The Best Friend pulled train cars, the first locomotive to do so in the United States
, .... the centers for railroad transport of agricultural and industrial products. .... 
Between the world wars, new, more powerful steam locomotives had been put 
into... [DOC] [TLE] High School - Railroad Museum of Pennsylvania [PAR] machinery in factories and mills, pumping stations, and pulling the products of 
these mills and ... But it took many decades of trial and error to develop vehicles 
that could ... The world's earliest railways used horses to pull carts on rails. ... 
earliest master steam locomotive builders were George and Robert Stephenson, 
who... [DOC] [TLE] coal mining | Britannica.com [PAR] Jun 14, 2016 ... Coal mining, extraction of coal deposits from the surface of Earth and ... The 
introduction of the steam engine to hoist coal was a major ... the critical 
importance of ventilation in coal mines from the earliest days. ... The oldest of the 
basic underground methods, room-and-pillar mining grew naturally out of the... [DOC] [TLE] Industrial Revolution - New World Encyclopedia [PAR] Apr 13, 2015 ... A Watt steam engine, the steam engine that propelled the Industrial .... was 
initially used mainly for pumping out mines, but from the 1780s, was applied to 
power machines. ... With a series of men trained to do a single task on a product, 
then .... Coal mining in Britain, particularly in South Wales started early. [DOC] [TLE] ASME Landmarks - Engineering and Technology History Wiki [PAR] Aug 10, 2015 ... The iron mines, furnaces, forges, and stamping mills of the complex ... Sydney, 
New South Wales, Australia  ASME Landmark #111, Designated on April 17, 
1986 ... It was powered by a Boulton and Watt condensing steam engine and a ... 
steamer is the oldest operational marine steam engine in the world. [DOC] [TLE] 1750-1900 Coal and Steam Workbook - Black Country Living Museum [PAR] You will discover that the coal industry and the developments in steam power 
were closely connected in ... by the expansion of the mining industry during the 
period 1750-1900: ... John Marius Wilson's Imperial Gazetteer of England and 
Wales 1870-72 ..... been mined, the props would be pulled out to be reused 
elsewhere. [DOC] [TLE] A Brief History of Iron and Steel Manufacture - Saint Anselm College [PAR] ... after 1777, James Watt's new steam engine was also used for these purposes

Question: The world's earliest steam locomotives pulled cars full of this product out of mines in Wales
Answer: coal