Petroglyphs and cave paintings, some more than 4,000 years old, discovered in Mexico

Archaeologists from Mexico’s Instituto Nacional de Antropología e Historia (INAH) have identified 16 petroglyphs and cave paintings near the Tula River in Hidalgo. The artworks span over 4,000 years, ranging from prehistoric times through the Mesoamerican Postclassic period and into the early colonial era. The discovery, which includes depictions of the rain god Tláloc and various anthropomorphic figures, was made during archaeological salvage work for a new passenger rail line connecting Mexico City and Querétaro.