Ovoo

What an ovoo is

An ovoo is a heap of stones that serves two purposes at once: a marker of a border or a route, and a shrine. Many are no more than a mound, while most have branches and khadag, the ceremonial silk scarves, standing in them. Where stone is scarce, people build them from branches alone, or from soil or sand. They stand on high ground, on peaks and passes, and also beside rivers, springs and busy crossroads. A few modern examples have grown large and detailed, closer to a temple than to a simple altar. Shamans, kin elders and Buddhist lamas use them for worship of Heaven and lesser gods.

Origins and history

Buddhist ritual at ovoos goes back at least to the 16th century, and some scholars trace the cairns themselves much further, to prehistoric times. Instructions that Mongolian lamas follow when they raise an ovoo and make offerings to it were written in the 19th century by the third Mergen Gegeen. The Buryat scholar Dorzhi Banzarov argued that ovoo worship was a piece of shamanism that Buddhism had absorbed. Other evidence suggests a plainer past: before Tibetan Buddhism spread in Mongolia, the heaps may have served only as markers, not as holy places. Worship was banned outright during communist rule and has returned strongly since 1990.

Stopping on a journey

People on the road treat an ovoo as a place to pause. The usual custom is to walk around the cairn three times, keeping to the clockwise direction, and to ask for a safe journey while doing it. A stone is then laid on the heap. Travellers may also leave something behind: sweets, money, milk or vodka. Anyone who cannot stop, because they are hurrying, may simply sound the car horn as they go past, and that is accepted as enough. Many ovoos carry animal skulls on their tops, placed there as part of the shrine.

The summer ceremony

Heaven worship ceremonies at ovoos usually fall at the close of summer. A worshipper sets a stick or a tree branch into the cairn and fastens a blue khadag to it. The scarf stands for the open sky and for Tengri, the sky spirit. A fire is lit and food is set out as an offering. Then come prayers and a ceremonial dance, with those taking part seated on the northwest side of the ovoo. Afterwards everyone shares a feast made from what is left of the offered food, so the meal closes the ceremony.

Today and change

Ovoo worship was forbidden while Mongolia was under communist government, together with other religious practice. Since 1990 it has come back, and it is now one of the most visible parts of revived religious life. Some ovoos have been rebuilt on a grand scale. Mining work is a threat to others. The word is common in place names: Bayan-Ovoo in Bayankhongor, Khentii and Ömnögovi provinces, Mandal-Ovoo in Ömnögovi, Saikhan-Ovoo in Dundgovi, Tsagaan-Ovoo in Dornod, and Bayan Obo in Inner Mongolia. Ovoos also appear in the video game Age of Empires IV, as a building used by the Mongols.

How Ovoo is kept

Travellers who pass an ovoo are expected to stop. They walk clockwise around it three times, asking for a safe journey, and each one puts a stone on the heap. Offerings such as milk, vodka, money or sweets may be left. If there is no time to stop, sounding the horn while driving past is enough. For the larger ceremonies, shamans, lamas or the elders of a kin group lead the proceedings: a branch is planted, a blue scarf tied on, a fire lit, food offered, prayers and a dance performed, and a shared meal eaten at the end.

When and where

The main ceremonies take place at the end of summer, in a season rather than on one fixed date. Travellers stop at an ovoo whenever they pass one, so the small daily customs happen all year round, in any weather and on any road.

Ovoos belong to Mongolia and to other Mongolic peoples, including Buryat and Khakas communities. They are raised on high ground: mountain tops, mountain passes and other elevated places. Some stand near rivers, springs or important crossroads. Place names across Mongolia and Inner Mongolia carry the word, from Bayan-Ovoo to Bayan Obo, which shows how widely the cairns are recognised.

What Ovoo means

The blue khadag tied to the branch is the clearest sign: it stands for the open sky and for Tengri, the sky spirit, so the ceremony looks upward. Circling the cairn and asking for a safe journey turn a journey into something more than travel, a request for protection on the road. Adding a stone joins each passer-by to the heap and to everyone who came before. For the people who keep these customs, an ovoo marks where human life and the sky meet.

Questions people ask about Ovoo

See also

Postpartum confinementA period of rest, nourishment, and seclusion for mothers after giving birth.Water lanternSmall lamps floated on water to honour the dead and ask for good fortuneDragon danceA long dragon puppet on poles, danced by a team at Chinese New Year and other festivalsTraditional tattooingThe ancient custom of marking the skin for protection, healing, status and sacred rites

Good reading and sources

• Ovoo on WikipediaEncyclopedia
• More photos on Wikimedia CommonsPhotos and video
• Wikidata recordOpen data

It may contain mistakes. Traditions differ from one family, village and community to the next, and the people who keep them know them best. If something is wrong, tell us. Last refreshed 2026-10-05.