Heading northwest from Huehuetenango [1], the Pan-American Highway leads to La Mesilla border and, beyond that, Mexico. Border formalities here are pretty straightforward, though the Mexican border crossing lies four kilometers away on the other side at Ciudad Cuauhtémoc, for which you’ll need to take a collective taxi ($0.50) if you’re not in your own car.
There are basic services here, including banks, a post office, police station, and ubiquitous money changers. If you get stuck here, head to Hotel Mily’s (500 meters uphill from the border, $15 d), with fan-cooled rooms, cable TV, and private hot-water bathroom.
Another alternative is Hotel y Restaurante Maricruz (about 200 meters from the border, tel. 7685-0532, $10 d), also with private bathrooms.
Links:
[1] http://www.moon.com/destinations/guatemala/the-western-highlands/huehuetenango