Workers at the Nazca Lines site recently found the faded, partially eroded outline of a cat stretching across a desert hillside.

The cat joins the ever-growing list of about 900 shapes and images that ancient people etched into the Nazca Desert soil. At 37 meters (121 feet) long, the cat is among the smaller geoglyphs in the desert; some of the largest shapes, down on the flat valley floor, span more than 500 meters (1,600 feet). Like other geoglyphs in the Nazca Desert, the cat’s ancient designers etched it into the ground by clearing away the dark surface sediment to form pale lines.

Geoglyph finds usually take months of trekking through the desert or poring over aerial photos, but the latest one was a happy accident. Workers were making improvements to a path leading up to a hilltop vantage point when they noticed the cat.