Desert Agriculture in Saudi Arabia29.9N 38.3E
A great number of circular green and brown fields contrast with the surrounding orange and tan desert sands of arid Saudi Arabia. This agricultural technique is known as Center Pivot Irrigation – water from deep underground is pumped to the surface and distributed via large center pivot irrigation feeds.
These circular fields range from a few hundred meters in diameter to as much as 3 km (2 miles) across. Although the fields may appear to be dotted randomly across the landscape, they actually are planned by engineers who follow ancient river channels now buried by the desert sand.