The two moon-exploring crew men of the Apollo 14 lunar landing mission, photographed and collected the large rock pictured just above the exact center of this picture.  The rock, casting a shadow off to the left, is lunar sample number 14321, referred to as a basketball-sized rock by newsmen and nicknamed "Big Bertha" by principal investigators. It lies between the wheel tracks made by the modular equipment transporter (MET) or rickshaw-type portable workbench. A few prints of the lunar overshoes of the crew members are at the left. This photo was made near the boulder field near the rim of Cone Crater.
NASA
Taken on 6 February 1971
<a rel="nofollow" class="external free" href="https://images.nasa.gov/details/as14-64-9129">https://images.nasa.gov/details/as14-64-9129</a>