I am looking into my photo files to get started with a daily photo from the Yakima Valley in Central Washington. Irrigation is the lifeblood of the valley, and a variety of systems are in place. This is one type, photo taken last month--the corn is much higher now. The mechanism is attached to a central pivot, and travels in a circle to reach the entire field. Auxillary springlers hit the corners.
Wherever you go in the valley, you are likely to have a mountain in sight--look on the horizon in the center.