|“||Bork's notes said his cave was cut into the mountains right above Odin's Shield. [src]||”|
Odin's Shield is a section of mountain on the Isle of Berk. It is a rocky cliff positioned below a large cave that is cut into the mountains.
In "We Are Family, Part 1", the Dragon Riders followed the instructions in Bork's notes to find Bork's cave in an attempt to find a map to the fabled Isle of Night. The instructions listed that Bork's cave was cut into the mountains above Odin's Shield.