Alerce Milenario

[3][4][2] In 2020, Jonathan Barichivich and Antonio Lara, of the Austral University of Chile, used an increment borer to carefully retrieve a partial sample.

As well as dating them, this can give data for dendroclimatology, the study of climate and atmospheric conditions during different periods in history from wood.

Jonathan Barichivich and Antonio Lara, of the Austral University of Chile, bored a partial hole into the tree as far as possible without damaging it.

[citation needed] The method has so far yielded evidence of approximately 2400 growth rings, but because the borer used could not reach the center of the tree, modelling was used to predict an overall age estimate of more than 5,000 years with 80% certainty.

Chile's National Forest Corporation has stated it has increased protections for the tree, and added rangers to the park.