Swamp kauri, sometimes marketed as "ancient kauri", are prehistoric kauri trees (Agathis australis), buried and preserved in peat up to 50,000 years ago in New Zealand's North Island.[1][2] Buried under a peat swamp by an unexplained act of nature at the end of the last Ice Age, the trees have survived the centuries underground, sealed in a chemically balanced environment that has preserved the timber in perfect condition.[3] The trees grew for nearly 2000 years before they were buried. Some have a girth of around 40 feet, and a total height of nearly 200 feet