Cenrut is a community-based project to create and freely distribute GPS maps of Central America.

The project covers Belize, El Salvador, Costa Rica, Nicaragua, Guatemala, Honduras, and Panama.

Cenrut 3.6 is available in formats for Garmin(PC+Mac), and iPhone/Android(Navitel, Navikey/7Ways).

Instructions in English are here: http://www.cenrut.org/adw/over.htm