Area: 50 North latitude | 100 West longitude - - 50 West longitude | 0 South latitude Data format: Datavalues in whole Meters (- = below sea level) Delimiter: space Grid size: 601 x 601 matrix of 5-minute grid values beginning at NorthWest corner progressing Eastward for 601 values, then stepping 5 minutes South for the next row, ending at SouthEast corner. Note: Negative latitudes are South. Negative longitudes are West.