Stock photography, photos: Caterpillar trucks at cement plant Stock photos of Caterpillar trucks transporting rock for production at cement plant in Saudi Arabia. Photograph: © Bill Lyons Click for a larger image and more information Keywords associated with this stock photo: horizontal, 00120, Caterpillar; trucks; transportation, horizontal; 00120; Saudi Arabia, bulldozer; tractor; truck, construction, caterpiller, cement, industry, mine, mining, environment, environmental, rock, slate, hillside, industry, work, earth mover