Saratoga County's name was derived from the Iroquois word sah-rah-ka or sarach-togue, meaning the hill beside the river, referring to the Hudson River bordering the county on its eastern flank and the Mohawk River delineating its southern border. Saratoga County, bisected by the toll-free, six-lane Adirondack Northway, serves as an outdoor recreational haven and as the gateway to the Adirondack Mountains and State Park for the populations of the Albany and New York City metropolitan areas. The county is also home to the internationally renowned Saratoga Race Course, one of the oldest venues in horse racing.