Museo Arqueológico information
Lonely Planet review
On the plaza, this is a well-presented and professionally arranged account of the surrounding area’s cultural evolution, with good background information (Spanish) on archaeological methods. Don’t miss the wall in the secondary patio, composed of stones with petroglyphs.
Next door Iglesia San José (1796) has graceful arches and a barrel-vaulted ceiling of cardón wood. The confessional and other features are also cardón, while holy water lives in a large tinaja (oil jar).