The Four Doors (in Spanish Cuatro Puertas) site, also known as Montaña Bermeja, 'Vermillion Mountain', is a complex of caves in the south of the municipality of Telde, Gran Canaria.

The Cuatro Puertas site is named after its most spectacular cave, the most emblematic of Gran Canaria due to its uniqueness and location. The site includes many other caves, some linked with each other. A small village nearby also bears that name, as well as a ravine (barranco de Cuatro Puertas).

The site is listed as Spanish Heritage as a Property of cultural interest.