Headquartered in Fort Worth, Texas, Burlington Northern Santa Fe Corporation (BNSF), through its subsidiary The Burlington Northern and Santa Fe Railway Company, operates one of the largest railroad networks in North America, with 33,000 route miles covering 28 states and two Canadian provinces. This network covers the western two-thirds of the United States, stretching from major Pacific Northwest and Southern California ports to the Midwest, Southeast and Southwest, and from the Gulf of Mexico to Canada.