sentences:  In 2019 the United States produced 200 tonnes (6.4 million troy ounces) of gold (down from 210 tonnes in 2018) from 12 states, worth about US$8.9 billion, and 6.1% of world production, making it the fourth-largest gold-producing nation, behind China, Australia and Russia.Most gold produced today in the US comes from large open-pit heap leach mines in the state of Nevada.The US is a net exporter of gold.