Drone Flight over Texas Quarry | Cockeysville, MD скачать в хорошем качестве

Drone Flight over Texas Quarry | Cockeysville, MD

Quadcopter footage from the Texas Quarry in Cockeysville, Maryland At nearly a mile long and 500 feet deep, "Texas Quarry, located in Cockeysville, Maryland, has been in operation for more than 150 years. This facility provided some of the building blocks of one of the most recognizable landmarks in our nation’s capital—the Washington Monument. Today, the material mined at the Texas Quarry is primarily dolomitic limestone, used in road construction and producing ready mixed concrete and hot mixed asphalt." http://articles.baltimoresun.com/2007... DJI Phantom 3 Advanced