Last spring (2007) a ?Mountain T-shirt Solidary Project? was launched as a way of sharing the common purpose of caring for the mountains over Spain and Portugal. Three thousand T-shirts were made with a design expressing unity in diversity in six different languages: Castellano, Catalán, Euskera, Gallego/Asturiano, Portuguese and French. This article describes RedMontañas' campaign to raise awareness of the importance of conserving the mountains.