I am new to this area having just bought a Garmin 60CSX and one of the 24K topo cards. I did not buy the 100K disc because of the reviews I read that said that the maps on the 100K disc were not accurate. I have been out with the 60CSX and the card maps and everything is spot on. It is great!
But since the topo card only covers 2 states I looked for other downloadable 24K topo maps and found this site. I have since downloaded maps for Arizona, Utah and Colorado. I have transferred each of these to extra micro SD cards and each seems fine by itself, but I would like to combine them into a single map containing all of the state information. The problem is that I don't know how.
I have tried using the MapSet Toolkit. I added the image folders for Arizona and Utah, but the build process failed. I tried the same with Utah and Colorado, but that failed also. I have also tried to download the relevant areas from the USGS Seamless Server, but the amount of data that can be downloaded is small.
Since I sometimes go to the Arizona/Utah border around Lake Powell to hike it would be nice to have a single map containing both of those states, but that combination is not available from Garmin. And the idea of constantly switching those micro SD cards in the open with any wind blowing is frightening. One small gust and the card would be gone forever.
Can anyone help me with info about how to combine the existing downloaded GPSFileDepo maps into a single set?
Thanks.