Hardin is situated on the banks of the Bighorn River and the edge of the Crow Indian Reservation. The Bighorn Canyon and Dam allow a majestic view of the water below. The reservation offers two mountain ranges, the rugged Pryor and Bighorn Mountains, with rolling hills and semi-arid plains surrounding the peaks. The town is surrounded by productive ranches and farms, including the largest wheat farm in the world. Coal mining has also contributed greatly to the local economy.