Báimǎchéng

Baima City stands among the hills west of Huan County, on an old frontier route toward Guyuan. Its walls follow the slope, and beacon towers once overlooked the surrounding approaches. In the Ming the fort formed part of the eastern line of Guyuan's defences, alongside posts on the middle and western routes. Troops were recruited to man the works, and supplies for their construction drew on neighbouring military horse pastures. The position helped protect both the interior settlements and the state herds.