Just outside of St. Canard, F.O.W.L. Headquarters looms. It is where High Command gathers to decide on the pursuits of F.O.W.L. and issues the necessary commands to their agents. F.O.W.L. Headquarters is set up inside a mountain and only recognizable as a place to avoid due to a few guards stationed outside. On the inside, it is a technological marvel. It contains laboratories and testing areas for all that the scientists stationed there create. The few guards outside are a distraction from the army inside, which is ready to spring into action the moment an intruder is detected.
Boom! Studios comics
After Darkwing agrees to team up with Steelbeak to prevent High Command from bringing Duckthulhu into their reality, Steelbeak takes him to F.O.W.L. Headquarters by means of his flying car. They plan to get inside by pretending that Steelbeak is Darkwing's hostage.
Joe Books comics