Pu'u 'Ō'ō is a volcanic cone located on the eastern rift zone of Kīlauea, one of the most active volcanoes in the world. It first erupted in 1983 and continued to produce lava flows for nearly 35 years, significantly shaping the landscape of Hawai'i Island. The eruptions from Pu'u 'Ō'ō have created new land and altered the surrounding environment. The cone itself is characterized by a series of craters and lava tubes, which are formed by the flow of molten rock. Pu'u 'Ō'ō's eruptions have been closely monitored by the United States Geological Survey (USGS) to study volcanic activity and its impact on the local ecosystem and communities.