Geologic map of the Shakespeare Quadrangle of Mercury

Most images used in mapping the geology of the Shakespeare quadrangle were taken during the near-equatorial first pass, with close encounter on the dark side of the planet. The second, south-polar pass did not image the Shakespeare quadrangle at high resolution. High-resolution images of small areas within the quadrangle were also obtained during the third pass, when the spacecraft was on the near-encounter north-polar trajectory. Because the spacecraft viewed the same areas from different positions during the first and second passes, stereoscopic pictures are available for certain areas of the southern hemisphere; however, such pictures are not available for the Shakespeare quadrangle. This map includes a strip of about 10° of longitude (averaging 400 km in width) of the Liguria quadrangle (H-4) to the west - as much of this quadrangle as is permitted by resolution and lighting conditions.