Deer stone is a special kind of stone that has been found in Mongolia. It's called deer stone because the designs carved into the stone look like deer.
Now, these stones were made a really long time ago, thousands and thousands of years ago when there were no computers, no TVs, and no cars. People back then would use stones to tell stories about important things that happened, like hunting or trading with other groups of people. They would carve these stones and put them up in special places where they could be seen by everyone.
The deer stone carvings were made by people who lived in Mongolia a long, long time ago. They were probably made between 2,000 and 4,000 years ago! The carvings are very special because they tell stories about the people who lived back then, and how they hunted and traveled across the land.
The carvings you'll see on a deer stone might look like a deer with long antlers. And sometimes they will have other animals, like birds or wolves, carved around them. The deer stones were usually set up in groups, in special places where they could be seen by lots of people.
Today, we can still see these deer stones in Mongolia, and they have become really important to people who study history and archaeology. They are like a window into the past, and they help us understand what life was like for people who lived so long ago.