|This article is about a/an location in Himitsu Sentai Gorenger.|
The Mobile Fortress Navarone (移動要塞ナバローン Idō Yōsai Nabarōn?) is a base of the Black Cross Army controlled by Volcano Mask General Magman. It is a fortress that can travel anywhere via the underground, rising up like a volcano before revealing its fortress capabilities, including cannons and launch pads for the Condoler fleet.
During a raid by the Gorengers, the team discovers that while the fortress appears invincible, it actually has three specific weak points which, when hit, would finally allow it to tumble. In a final raid on the fortress, Akarenger, Aorenger and Midorenger sacrifice their Gorenger Machines to strike all three points, destroying Navarone permanently and leaving Magman open to be defeated.