Immigration of international LDS members, mining booms, and the construction of the first transcontinental railroad initially brought economic growth, and the city was nicknamed the "Crossroads of the West". It was traversed by the Lincoln Highway, the first transcontinental highway, in 1913, and presently two major cross-country freeways, I-15 and I-80, intersect in the city. Salt Lake City has since developed a strong outdoor recreation tourist industry based primarily on skiing. It was host to the 2002 Winter Olympics. It is the industrial banking center of the United States.