Also known as the Snake Mountain, there is a 1.5 km (0.93 mi) north–south line in Nazca, approximately 20 meters (65.6 ft) wide, made up of about 6,000 holes in the ground, each roughly 1 meter (3.28 ft) in diameter and 50 to 100 centimeters (19.7 to 39.4 in) deep.
The first aerial photograph of the site dates back to the 1930s and was published by Robert Shippee in National Geographic.
Many theories have been proposed regarding the purpose of the site. Among the functional ones are a possible use as tombs (ruled out due to the absence of human remains) or as grain storage pits.