They can do some extension by overlapping tree ring records from fossil trees to that of contemporary trees. Still you’d be talking about a several hundred kilometer radius tree!
OK, several kilometer, not hundred. It would be visible from satellite.
They say they can, but ...
I bought a decorative box, made of a pioneer-era Bristlecone fence post.
I counted the rings (about 150), and googled up tree ring stuff, thinking I could fit my rings into the ‘master’ scheme.
There was a log of judgement calls on the individual tree ring classifications, in my opinion. So much so that I quit the quest.