Numerous petroglyphs have been discovered on the border of Colorado and Utah in the US. The carvings were created by Ancestral Puebloans, who are known as one of the most advanced Pre-Columbian cultures in North America. According to the researchers who discovered the petroglyphs, they had heard hints from locals that there was more to find in less accessible parts of nearby canyons, so they went looking. They found multiple examples on large rock panels located around a large plateau. According to Radoslaw Palonka, “Our findings from the current year completely change our perception of this settlement area in many different aspects. Definitely, we have underestimated the number of inhabitants who lived here in the 13th century and the complexity of their religious practices, which must have also taken place next to these outdoor panels.”