As its common name suggests, this tree is a native of California, where it will achieve a height of 100M + in the coastal forests, and its average maximum age is 500/700 years. There have been many that have been calculated to be 2000 years old, and the oldest known tree was 2200 years old when it was felled in 1934
This image is of one growing in Devon, where at that time it was measured at 41M, 138 feet in old money.
Foliage looking remarkably like the Dawn Redwood – Metasequoia