History: Rail Transportation In The United States

Rail link(s) with adjacent countries
• Canada – yes - Same gauge 1,435 mm (4 ft 8½ in)
• Mexico – yes - Same gauge 1,435 mm (4 ft 8½ in)
• Russia - no - proposed via Bering Strait crossing - a break of gauge from 1,520 mm (4 ft 11 5⁄6 in) to 1,435 mm (4 ft 8½ in) would be required