Image: MtWashingtonPittsburgh

Description: Picture of a view from Mount Washington in Pittsburgh, Pennsylvania, on September 18, 2010. The historical marker on the right says the following: "First Mining of Pittsburgh Coal - This state's bituminous coal industry was born about 1760 on Coal Hill, now Mt. Washington. Here the Pittsburgh coal bed was mined to supply Fort Pitt. This was eventually to be judged the most valuable individual mineral deposit in the U.S. Pennsylvania Historical and Museum Commission 1985".
Title: MtWashingtonPittsburgh
Credit: self-made Transferred from en.wikipedia
Author: Lee Paxton
Usage Terms: Creative Commons Attribution-Share Alike 4.0
License: CC BY-SA 4.0
License Link: https://creativecommons.org/licenses/by-sa/4.0
Attribution Required?: Yes