Amazon is sinking $4 billion into rural delivery infrastructure, expanding its two-day shipping network deep into areas like Montana where packages once took weeks. The e-commerce giant is building new shipping hubs in remote regions to reduce dependence on the U.S. Postal Service, a move that could reshape logistics for millions of rural residents. Matthew Norton, a driver for Amazon, now delivers to places like Conner, Montana, where drop-boxes like the one beside the Bitterroot River now serve communities previously underserved by fast shipping.