Which natural resource was discovered in New Mexico that significantly contributed to its economy in the 20th century?

The discovery of uranium in New Mexico had a profound impact on the state's economy during the 20th century. Following its discovery in the late 1940s and 1950s, New Mexico became a central player in the American nuclear industry, supplying uranium for nuclear power plants and weapons. The demand for uranium due to the Cold War and the subsequent nuclear energy boom stimulated economic growth, brought jobs to the region, and attracted mining companies to the area. This contributed to significant developments in infrastructure and population growth in various parts of the state, particularly in areas like Grants and Shiprock, which became hubs for uranium mining activities. The overall influence of uranium mining helped diversify New Mexico's economy, which had previously relied heavily on agriculture and ranching.