PROJCS["US_National_Atlas_Equal_Area",
    GEOGCS["GCS_NAD_1983_NSRS2007",
        DATUM["D_NAD_1983_NSRS2007",
            SPHEROID["GRS_1980",6378137.0,298.257222101]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Lambert_Azimuthal_Equal_Area"],
    PARAMETER["False_Easting",0.0],
    PARAMETER["False_Northing",0.0],
    PARAMETER["Central_Meridian",-100.0],
    PARAMETER["Latitude_Of_Origin",50.0],
    UNIT["Meter",1.0]]