User blog comment:Xxkiiroxx/"Shingeki no Kyojin is Set in North America" Theory/@comment-108.11.137.243-20141011140208/@comment-25448721-20141013225329

Whoever wrote that must have misinterpreted it then, I'm basing it off of the image

http://shingekinokyojin.wikia.com/wiki/User_blog:Xxkiiroxx/%22Shingeki_no_Kyojin_is_Set_in_North_America%22_Theory?file=About_the_Walls_Pt2.jpg#WikiaArticleComments

"There's about 100km between Maria and Rose, about 130 km between Rose and Sina, and about 250 km between Sina and the center"