"Natural gas is flared off as oil is pumped in the Bakken shale formation; the gas is burned because no pipelines have been built to transport it to market, Watford City, North Dakota, United States, North America"

"Natural gas is flared off as oil is pumped in the Bakken shale formation; the gas is burned because no pipelines have been built to transport it to market, Watford City, North Dakota, United States, North America"

"Natural gas is flared off as oil is pumped in the Bakken shale formation; the gas is burned because no pipelines have been built to transport it to market, Watford City, North Dakota, United States, North America"

Watford City, North Dakota - Natural gas is flared off as oil is pumped in the Bakken shale formation. The gas is burned because no pipelines have been build to transport it to market.

"Busts of four presidents carved in rock, Mount Rushmore National Memorial, near Rapid City, South Dakota, USA, United States of America, North America"

"Busts of President George Washington carved in rock, Mount Rushmore National Memorial, near Rapid City, South Dakota, USA, United States of America, North America"

"Teepees, tents of the Oglala Lakota or Oglala Sioux subtribes, eroded landscape and grass prairie, Badlands National Park, South Dakota, USA, United States of America, North America"

Old abandoned farm preserved as an open-air museum in Point Reyes National Seashore, Point Reyes, California, USA, North America

"An old, abandoned farmhouse on the North Dakota prairie, Watford City, North Dakota, United States, North America"