BLM-New Mexico has partnered with the New Mexico Department of Game and Fish (NMDGF) to offer maps of NMDGF Big Game hunting units on the CarryMap Observer application. CarryMap Observer is a unique solution for reproducing maps as self-sufficient distributable electronic map applications for desktop computers and mobile devices. CMF and CMF2 map files are used with the CarryMap Observer and CarryMap applications on mobile devices and Windows computers in order to facilitate hunting and other recreational mapping needs in the field. Map files expire every year to ensure data doesn't 'go stale' and users are forced to download updated information.