Out on the steppe of central Mongolia, there are stone monuments that have stood for around three thousand years. Deer stones are tall granite slabs, sometimes taller than a man, carved with images of flying deer, their long antlers sweeping back along the stone, along with belts, tools, and a sun and moon. They were erected in the Late Bronze Age, roughly between the fifteenth and seventh centuries BC, by nomadic herders who also built stone mounds and square fenced burials known as khirigsuur. The stones seem to mark graves of important people, and the deer motif has been interpreted as a vehicle for the soul to travel to the sky, though nobody knows exactly.
Herds of horses, sheep, goats and yaks dot the land, and the white felt tents, gers, stand in small clusters near water. Villages are small and far apart, and no town of any size appears in the nearby database, so you should assume that fuel and supplies are far away.
Riding in Mongolia is a different thing altogether. Paved roads connect the main towns, but off them you follow dirt tracks that braid across the grassland, and the surface changes from hardpack to sand, mud and rock without warning. River crossings can be deep after rain, and weather can turn quickly, with hail and cold wind even in July. This is serious country for experienced riders in a group, with spare fuel, a satellite beacon, and a good map. Nomadic families are hospitable, and it is customary to accept a bowl of airag, the fermented mare's milk, or salty milk tea, and offer something in return.
The best season is from June to September, when the grass is green, and the days are long, though nights can be near freezing. Spring is windy and autumn arrives early.
Treat the stones with respect: do not climb on them, do not take rubbings, and leave everything as you found it.