 It is the name applied to a linked system of smaller greenway projects encircling St. Louis City, St. Louis County, and St. Charles County.Each of these green belts will follow the natural paths of rivers and streams in the area.The total project will eventually comprise more than 600 miles of trails and include more than 45 different greenways connecting existing parks, trails and greenways in the City of St. Louis, St. Louis and St. Charles Counties in Missouri with those developed by the Metro East Parks District of St. Clair and Madison Counties in Illinois.