How are conch-shell horns used to signal ceremonial events?

Among Native American cultures, conch-shell horns are primarily utilized as instruments for signaling purposes. Because they produce a powerful, penetrating sound, they are well-suited for communication across distances and for marking significant ritual or ceremonial occasions.12

For example, the Cayuga people of the Eastern Woodlands use the conch-shell horn to announce events held at the Longhouse. In the Andean region, these instruments—sometimes referred to as qquepas—were historically used in religious ritual contexts, and in some Mesoamerican traditions, the large conch trumpet served as an instrument of war.13

These horns are categorized as aerophones, producing sound when a player vibrates their lips against the instrument's opening. Their use in these contexts reflects the broader significance of wind instruments in Native American traditions, where they are often deeply connected to spirituality, shamanism, and the representation of breath as the essence of life.12