Palus Somnii (The Marsh of Sleep)

http://www.lpi.usra.edu/resources/apollo/frame/?AS15-M-0962
http://www.lpi.usra.edu/resources/mapcatalog/LAC/lac61/
http://astrogeology.usgs.gov/lo-cgi-bin/frameListPage.pl?mission=4&frame=066