This is an oblique photograph of the <i>Catena Mendeleev</i> linear crater chain. This feature is located on the interior floor of the <a href="https://en.wikipedia.org/wiki/Mendeleev_(crater)" class="extiw" title="en:Mendeleev (crater)">Mendeleev walled plain</a>, on the <a href="https://en.wikipedia.org/wiki/Far_side_of_the_Moon" class="extiw" title="en:Far side of the Moon">far side</a> of the Moon. The image was taken during the <a href="https://en.wikipedia.org/wiki/Apollo_11" class="extiw" title="en:Apollo 11">Apollo 11</a> mission. The crater at top center is <a href="https://en.wikipedia.org/wiki/Richards_(lunar_crater)" class="extiw" title="en:Richards (lunar crater)">Richards</a>. The absence of shadows is due to the high angle of the sun.
NASA
<a rel="nofollow" class="external text" href="http://www2.jpl.nasa.gov/sl9/image309.html">image309</a> — NASA Photo ID AS11-43-6439, 70mm b&amp;w, taken 7/16/69. Black borders along the left and right edges have been cropped from the original image.