Close_Quarters_Map_1.01.zip is a release file of the Minecraft map Close Quarters - Limited Space, Lots of Mobs!, made for Minecraft 1.6.2. It was published on July 27, 2013 and is 0.6 MB in size. For the full description, screenshots and every other version, visit the Close Quarters - Limited Space, Lots of Mobs! map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.