Oblique view of western Mare Fecunditatis, on the moon.  Part of Rimae Secchi is visible in foreground.  Montes Secchi are beyond the Rimae, including <i>Apollo Ridge</i> (unofficial name by Apollo astronauts) at center, and Mount Marilyn at the horizon.
NASA
1969
Apollo Flight Journal, Apollo 10, Photography Index, <a rel="nofollow" class="external text" href="https://www.hq.nasa.gov/office/pao/History/afj/ap10fj/photos/29-p.html">70-mm magazine P</a>, image <a rel="nofollow" class="external text" href="https://www.hq.nasa.gov/office/pao/History/afj/ap10fj/photos/29-p/as10-29-4263.jpg">AS10-29-4263</a>