It's different. The former is a place name, that is, the official administrative place is Yang Shan, a county, which seems to belong to Shangluo, Shaanxi, and the Yang Shan Forum is a window website.

Because the latter is located at the southern foot of Taihang Mountain, Chaoyang and halfway up Taihang Mountain, it is administratively called Jiaozuo and Yang Shan, so it is also called Yang Shan.