New Mexico is a state located in the southwestern region of the United States. Inhabited by American Indian populations for many centuries, it has also has been part of the Imperial Spanish viceroyalty of New Spain, part of Mexico, and a U.S. territory. The landscape ranges from wide, rose-colored deserts to broken mesas to high, snow-capped peaks. Despite New Mexico's arid image, heavily forested mountain wildernesses cover a significant portion of the state, especially towards the north. Oil and gas production, tourism, and federal government spending are important drivers of the state economy. State government has an elaborate system of tax credits and technical assistance to promote job growth and business investment, especially in new technologies. New Mexico is a leading crude oil and natural gas producer in the United States. The state provides financial incentives for film production. The New Mexico Film Office estimated at the end of 2007 that the incentive program had brought more than 85 film projects to the state since 2003 and had added $1.2 billion to the economy.