Which Great Walls in Beijing can fly drones?

Some Great Walls in Beijing can fly drones, including Mutianyu Great Wall, Huangsongyu Pass, Juyongguan Great Wall, Baihua Mountain, Wang Tan Road and around the Ming Tombs Reservoir, winning streak. However, it should be noted that there are many troops near the railway line and Juyongguan Great Wall, so we should pay special attention to the tips and no-fly signs nearby.