The Apollo 17 Lunar Roving Vehicle (LRV) is photographed near a large lunar boulder, nicknamed "Tracy's Rock", during the third Apollo 17 extravehicular activity (EVA) at the Taurus-Littrow landing site. About half of the boulder is captured in this scene, photographed by astronaut Eugene A. Cernan, mission commander. While astronauts Cernan and Harrison H. Schmitt descended in the Lunar Module (LM) "Challenger" to explore the lunar surface, astronaut Ronald E. Evans, command module pilot, remained with the Command and Service Modules (CSM) in lunar orbit.
NASA
<a rel="nofollow" class="external free" href="http://www.hq.nasa.gov/alsj/a17/images17.html#MagE">http://www.hq.nasa.gov/alsj/a17/images17.html#MagE</a> (<a rel="nofollow" class="external text" href="http://www.hq.nasa.gov/alsj/a17/AS17-140-21497HR.jpg">image link</a>); description taken from <a rel="nofollow" class="external free" href="http://spaceflight.nasa.gov/gallery/images/apollo/apollo17/html/as17-140-21493.html">http://spaceflight.nasa.gov/gallery/images/apollo/apollo17/html/as17-140-21493.html</a>