Yes; if you use a language other then the games install language there will be a another complete Everquest 2 game of the chosen language inside folder named LP_REGION_XX_XX in the default Everquest 2 directory.
This is talked about in the FAQ under the heading
I'm using the game in a different language and have trouble?.
Had you used EQ2 Henchman to install EQ2MAP it would of detected the language and put in the correct location :P
** Shameless plug! **