You don’t necessarily have to travel to New Mexico’s famous to see signs of an ancient culture’s knowledge of astronomy.
When Tyler came upon the astronomical markers in Hell Roaring Canyon, he had come simply to photograph a moonset, he said. However, because of his longtime study of rock art, he believed the shadows he saw in the canyon were especially significant. So he made his way down the difficult trail, scrambling over boulders and crawling on his belly in some places to reach the area.