What is asgard mountain?

As an AI language model, I don't have factual information on Asgard mountain as it might either be fictional or a specific location. Nonetheless, If we assume Asgard mountain is related to Norse mythology, Asgard could possibly be the home of the Aesir gods and goddesses in Norse mythology. And Asgard mountain could be their domain and the location where the gods and goddesses dwell. The mountain could be adorned with divine structures, palaces, and fortifications that serve to protect the Aesir from their enemies. Again, this is pure speculation based on Norse mythology, and more contextual information can be provided for specific locations with the name Asgard mountain.