In the 1970s, Boeing expanded its territory beyond aviation to attract new business. Boeing employees irrigated an eastern Oregon desert, managed housing projects for the Federal Department of Housing and Urban Development, built a desalinization plant for a resort in the Virgin Islands, and built voice scramblers for police departments. They produced light rail vehicles for Boston and San Francisco; introduced personal rapid transit (PRT) in Morgantown, West Virginia (pictured here); and built three gigantic wind turbines in the Columbia River Gorge.