In fact, the Divine Weapon Pavilion is not a sect fixed to a single mountain. They can be considered a wandering sect!
With the Primordial Black Dragon and the Ancient Coiling Dragon, they can easily settle in and take root in any place with beautiful mountains and rivers as a nomadic form of residence!
Sometimes they stay for three to five years, other times just three to nine months. The Divine Weapon Pavilion rarely roots itself in one place for long!
The Ancient Coiling Dragon is an Azure Dragon. Though it can rapidly grow ancient pines into giant divine pines, its foundation is not very stable. On the other hand, a Primordial Giant Dragon like Big Black Tooth can easily shoulder the mission of hosting a sect. No matter how grand or towering their pavilions are, it won't affect it in the slightest.