First page of SL systems with ranks of 3 or more. Each cutout image has the visual inspection ranking displayed in a red box in the lower right hand corner. All images are oriented with north up and east left. Most of the cutouts are 30″ × 30″ in size. Some of the largest systems are displayed with 60″ × 60″ images, so that they fit well within the cutout. A scale bar 10″ long is displayed in the lower left hand corner.