A view from the sky (Google Maps)

A place where we can look at amazing circles.
The longitude and the latitude of these silent circles will be registered here.
All comments are welcome, please participate.

There are Central Pivot Irrigation; Equipment for watering a crop area. The system moves in a circular pattern (rotates around a pivot) and is fed with water from the pivot point at the center of the circle. This equipment is common where terrain is flat.
It can be seen from the sky as a green circle. The color of the circles can be slightly different depending of agricultural variety processes: Fields that have been harvested recently or that have just been planted, or even that have been taken out of production.