Lights in the city of Cusco

During my time at the La Bom, which is in Cusco, Peru, I sat down to work on the little patio they have outside which overlooks a vast part of Cusco. While taking in the beauty of the city lights, I noticed how there would be fewer lights on the city's outskirts, which makes sense since those parts are not as populated, and thus there is less need for city lights. However, while looking at the city there would be areas that were completely dark but were surrounded by lights. This led me to question, why are there no lights in those areas? My initial thoughts were there might be some construction in these areas, and thus there might be some power outage. The amount of these “dark gaps,” however, did not add up with the construction theory. What do y’all think is the reason for these dark gaps?

            In addition to this, I noticed that the lights turned on relatively early for eastern time which makes sense because it’s on the border of the time zone. Furthermore, when they turned on, there were white lights rather than yellow lights on the outskirts of the city, and this reflects the time in which these lights were set up because Cusco is still an expanding city. This expansion makes me wonder, will they set up lights on the mountains themselves? Since the lights are slowly climbing the mountain.