Recently did Copper Canyon with Caravan Tours. First trip with them. Did my research first. They have been around for many years and specialize in North and Central America.
A detailed trip report is available at:
http://www.slowtrav.com/tr/tripreport.asp?tripid=1435
or
http://www.tripadvisor.com/ShowTopic-g1 . .. .. . exico.html
Pictures and video are available at
http://good-times.webshots.com/album/56 . .. .. . good-times
This forum adds an extra "period" in URLs. Therefore, you will need to delete the extra "period" in all instances where two appear together. Happy traveling!!
Smiles,
E3