Pay attention to one thing, these trails are graded from T1 to T4/T5 SAC scale. It's very very important, specially if you are a foreigner, that you plan the journey. Almost all trails lack indications, I've helped a lot of lost people ( german, french, dutch... ) who told me they didn't find arrows or other signs.
These maps cover a huge extension. From Boyar valley to Villaluenga valley, and from Grazalema village to Benaocaz village : Endrinal, Sierrecilla, Sierra del Caillo, mountain subgroups as Reloj, Coargarzal o Jauletas...
Please use this maps with caution because you must have knowledge of mapping and orienteering.
Please take note of this two reference points ( WGS84 - ETRS89 ) :
Cao -> ftp://ftp.geodesia.ign.es/Red_Geodesica/Hoja1050/105031.pdf
Reloj -> ftp://ftp.geodesia.ign.es/Red_Geodesica/Hoja1050/105044.pdf
I have splited in several sectors of 4.000 por 2.500 metres with UTM cartesian coordinates.
Red sector -> Enlace
Blue sector -> Enlace
Magenta sector -> Enlace
Green sector -> Enlace
Orange sector -> Enlace
Cyan sector -> Enlace