Support Piles Secure Mt. Washington

On the southern banks of the Monongahela and Ohio Rivers sits Mt. Washington, PA.  Just outside of downtown Pittsburgh, PA. Formally known as Coal Hill, with its easy access to the Pittsburgh coal mines, Mount Washington allowed several coal mines to base their operations there. Rock and sandstone were transported up and down the hill on Mt. Washington due to its access to the river, utilizing boats to haul material from the coal mines to other areas. However, this now local tourist a ... Read more

MC4D Helps Breathe New Life into Old Mine

MC4D Helps Breathe New Life into Old Mine  Editor: Debbie Reaney  Construction is underway to reopen the Mineral Park mine, a large open pit copper mine located in the Cerbat Mountains 14 miles northwest of Kingman, Arizona. According to a 2013 report, Mineral Park represented one of the largest copper reserves in the United States and in the world, having estimated reserves of 389 million tons of ore grading 0.14% copper and 31 million oz (about 878834.5 kg) of silver.  ... Read more