A team of archaeologists recently discovered what they call the earliest depictions of a hunter-gatherer camp ever discovered. They said the primitive engravings they found are about 13, 800 year old.

According to the team, newfound etchings were discovered near the Molí del Salt rock shelter in northeastern Spain. The findings indicate that ancient people might have lived in dwellings that are very much similar to those of modern-day hunter-gatherers.

Researchers hope their findings could help shed some light on the lifestyle of the ancient people. It has been known that from about 15,000 to 9,000 year ago, ancient nomadic people kept returning to the Molí del Salt rock shelter.

Study co-author Manuel Vaquero, an art historian at the Catalan Institute of Human Paleoecology and Social Evolution in Tarragona, Spain said, “This site was fully incorporated in annual cycle of these nomadic societies. During this time, the Paleolithic human groups produced instruments for hunting and for work on skin, dismembered animals to consume meat, cooked food and they slept in that space”.

Most of the evidence they collected hints at human occupation of the site, but so far researchers haven’t known exactly what Paleo villages actually looked like. They said that they did not found any drawings or the depictions of human dwellings from that time.

But, postholes from ancient settlements around Europe suggest hunter-gatherers used huts made with wood for framing and with an oval floorplan.

The new drawings showed a row of seven semicircular shapes, with parallel lines within each. The findings of the team were published in the journal PLOS ONE on December 2, 2015.