Roque de los Muchachos Observatory at La Palma

View of the “Roque de los Muchachos” Observatory, located at an elevation of 2400 metres on the Canary Island of La Palma, Spain. The “Roque de los Muchachos” peak was included in the final short list of candidate sites to host the ELT. In this picture, on the left, the dome of the 4.2-metre William Herschel Telescope.