This line shapefile represents the major rivers within the United States at 1:5,000,000 scale. This layer is part of the 2014 ESRI Data and Maps collection for ArcGIS 10.2. U.S. Rivers (Generalized) provides a base map layer of major rivers of the United States. ESRI. (2014). United States Rivers (Generalized), 1990-2009. ESRI. Available at: http://purl.stanford.edu/zx611hg3632.