Other urban centers near Denver are also growing quickly. While the population of the Denver metropolitan area increased by 78% between 1990 and 2017, Greeley, about 40 miles north of Denver, increased by 66.5% in the same time period.
In these false color images, residential areas are a mottled green, with streets, highways, and other infrastructure showing up in purple hues. The brightest green spots are golf courses, parks, and other areas that have growing green grass. Bright green circles and rectangles are farm fields. In fact, just about everything that is green in these images away from the mountains is irrigated.
Other expansion seen in these images is the petroleum and natural gas industry. An increased number of bright spots indicates more oil and gas wells.