Grid Systems

I was on Google Earth a few days ago looking at the Nazca lines in Southern Peru/Northern Chile. I stumbled on what appeared to be a mine field. There were hundreds of circular shapes similar to the ones you would find around Salisbury England. From Google Earth its difficult to tell if these circular shapes are mounds, or depressions. They measure about seventy feet in diameter. heres a close-up of just one of these mounds.
You can see its circular shape and a circular center thats actually very similar looking to the classic "flying disc" style UFO. I began marking each one of these objects that I saw and a pattern emerged:
I kept marking them and started to find them everywhere:
I noticed how evenly space these objects were once I zoomed out. Things really got scary when I over layed the long lat grid over these objects:
Every one of these "grid points" overlapped perfectly meaning they were specifically put in placements of North, South, East, and West (Just like the great pyramid)! I don't know how old these are or what they are for. Some suggestions that came to me were and ancient radio receiver/amplifier array similar to the ones we use today to "listen" to space. If these objects were not made in the past 200 years, there are a lot of questions that need to be answered.

One Love.