Proposed high - speed rail would connect Inner Mongolia with Mongolia , which are more than 3,000 kilometers apart . `` The country is now shifting its focus and investing in the western regions and economically underdeveloped areas , making up for China 's long debt to these areas , '' China 's longest high - speed rail line is almost 2,300 kilometers long , between Beijing and Guangzhou . Train would open access to some of China 's remotest areas for tourists .
Proposed high - speed rail would connect Inner Mongolia with Mongolia , which are more than 3,000 kilometers apart . China 's longest high - speed rail line is almost 2,300 kilometers long , between Beijing and Guangzhou . Train would open access to some of China 's remotest areas for tourists .