The Kursk Magnetic Anomaly is one of the richest iron ore deposits in the world. It's located in Russia, in the south of the Central Russian heights. There is so much iron quartzite here is so great, that only vague estimates in the billions of tons can be made with regard to its true volume. The needles on compass are put 15 degrees out of kilter by its mass, leading scientists to regard the area as a unique geo-physical phenomenon — it's often referred to as the Earth's Third Magnetic Pole. A unique engineering object has been developed here — the world's largest open quarry of non-combustible minerals, the Lebedinsky.