GPS help and advice

Hi.As I am in Peru we do not have memory map, Anquet etc. The only paper maps here are 1:100 000 which is actually fine for the scale of the terrain. I am uploading route descriptions onto a website to share, at present I just have grid references but would like to add maps that people could actually download and use to navigate.

At present I have lots of co-ordinates stored on garmin e trex. Only problem is reception is not great with it, so lose bits of info and also am considering buying something else rather than paying 35 quid for a cable. At present am transferring data by hand which is too time consuming.

So my question are: 1. any advice on making a google map printable to navigate with and can you annotate with grid numbers to allow to use grid references
2. is the etrex noted for bad reception,and if so what is better.
3. is there still a good gps logger perhaps that would do the job whilst being more compact and using less batteries ( there are some long trips here)
4. am I better off just scanning and annotating a copy of the peruvian equivalent to os maps?

lots of questions so thank you for any advice

hi, thanks for the reply, yes there is a national grid system

the e trex I have is Garmin eTrex H - iking, the basic yellow one

yeah, copyrighting was something I need to check out

thanks for the help

The only resource I've got bookmarked for Peru is this one:

http://www.allthemountains.com/

And there is a brief history of datums and mapping at the site given below (I have no idea if it is valid or not):

http://www.asprs.org/a/resources/grids/05-2006-peru.pdf

thanks,shall take a look at those