We didn't come down this season but stayed at las Fuentes the two previous years. Here is a link to
our 2012 blog which has pretty good directions FROM THE NORTH. (Scroll down to near the bottom of the entry For a little entertainment read the section about the fun we had in Queretaro!)
You'll have to work out the north bound yourself! Northbound on the 57 from Matehuala you want to head towards Saltillo at near Arteaga. IF you have a GPS with Mexico maps you should be OK. The hotel is on the lateral just before the periferico, on the SOUTH BOUND side (Actually East bound at this point) so you will have to get on the lateral and do a retorno. We know this because we got on the lateral too late and had to go back!
It's a two lane lateral and you need to park right in front of the hotel and walk in to get someone to open the gate to the field.
There may be one two "15 Amp" outlets by a lamp post but we have good solar and gen so just found a reasonably level spot in the middle of the field.
Hear is a another link, this one to the
2013 entry. It has a link to the hotel's website.We figured that from Larado to Matehuela could be done in one day bypassing Saltillo completely on the 57D directly from the 40D and bypass around Monterrey. I see no reason that going north would take any longer since we spend about an hour at checkpoints southbound.