Jasper County Democrat, Volume 2, Number 21, Rensselaer, Jasper County, 2 September 1899 — World’s Coal Fields. [ARTICLE]
World’s Coal Fields.
The total area of the coal field* In the world is estimated at 471,800 square mi lea
World’s Coal Fields.
The total area of the coal field* In the world is estimated at 471,800 square mi lea