Lake Jìngpō

Lake Jingpo stretches through the mountains on the upper Mudan River. Its long, narrow basin was formed when volcanic lava blocked the river, and water leaves the lake over the Diaoshuilou Falls. Earlier names for the lake included Huhanhai and Bilten. North of its shores stood the city of Shangjing Longquanfu, a capital of the kingdom of Balhae, whose ruins recall the power that once governed much of this forested country.