CNR meaning in Airport Code ?

Chañaral is a small coastal city and commune in the Atacama Region, Chile and capital of the Chañaral Province. It is a colourful town largely unknown by tourists, who generally head straight for towns such as San Pedro de Atacama. The town is considered unspoiled, with the benefit of having absolutely no high rise buildings. On the arid hills nearby is a lighthouse which casts a beam over the town during the night. Throughout the day and night, there is a lively, bustling atmosphere on the narrow streets. Despite it being coastal, it is not a typical seaside resort, partly because the ocean is contaminated by the copper mining industry. Situated a short distance to the north is the Pan de Azúcar National Park.