Here are some possibilities depending on what you mean by "Northland":
* New Zealand's Northland Region: The region has many ancient kauri trees (Agathis australis). The oldest known kauri, Tane Mahuta, is estimated to be around 2,500 years old. However, there are likely other ancient kauri in the region that have yet to be discovered.
* Northern Hemisphere: If you mean the northern hemisphere in general, then you're looking at a much larger area. The Methuselah, a bristlecone pine (Pinus longaeva) in California, is considered the oldest known living, non-clonal tree at about 4,850 years old. There are likely other ancient trees in the northern hemisphere, but their ages are often difficult to determine.
* "Northland" as a general term for the north: This is too broad of a definition to provide a specific answer. The oldest trees in the world are scattered across the globe, with ancient trees found in places like Sweden, Chile, and Tasmania.
Important Note: The age of very old trees is often estimated based on various methods, including ring counting and carbon dating. These methods can be imprecise, and the actual age of a tree may be slightly different than what is reported.
If you can specify exactly what you mean by "Northland," I can give you a more specific answer.
