Photographer David Gray has been traveling across a small part of Mongolia, which is the least densely populated country on the planet according to figures cited by Reuters. The population of just 2.7 million is spread across an area three times the size of France, with two-fifths of Mongolians living in rural areas.
Horses graze on grasslands south-west of the Mongolian capital city Ulan Bator on April 4, 2012.
painting of the former Mongolian Emperor Genghis Khan hangs from the wall of a mining hut located around 62 miles north of Ulan Bator on April 5, 2012.
A frozen river is seen next to a group of houses located on the outskirts of the Mongolian capital city of Ulan Bator on April 3, 2012.
A herder stands on a hill overlooking grasslands south-west of Ulan Bator on April 4, 2012.
A dog sits at the door to a house in a small township located on grasslands south-west of Ulan Bator on April 4, 2012.
A woman performs a water displacement test to determine the purity of some gold that was brought in by small-scale miners at a processing plant north of Ulan Bator on April 5, 2012. The International Monetary Fund estimates Mongolia"s GDP could grow as much as 10 percent this year, helped by rising gold prices but there is concern over environmental standards in the mining industry.