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I have started posting some photographs and descriptions of various trips, taken for both work and play.
Trip reports highlight some wonderful places to camp, backpack, raft, or sample. Brown, Director ○ [email protected]○ (970) 229-9557 Rocky Mountain Tree-Ring Research ○ 2901 Moore Lane ○ Fort Collins Colorado ○ 80526 USA © Rocky Mountain Tree-Ring Research, Inc.
The first table includes trees for which a minimum age has been directly determined, either through counting or cross-referencing tree rings or through radiocarbon dating.
Many of these trees may be even older than their listed ages, but the oldest wood in the tree has rotted away.
The colony has been estimated to be 80,000 years old, although tree ring samples date individual, above-ground, trees at only an average of about 130 years.
A colony of Huon pine trees covering 2.5 acres (1.0 ha) on Mount Read (Tasmania) is estimated to be around 10,000 years old, as determined by DNA samples taken from pollen collected from the sediment of a nearby lake.
RMTRR is also the home of OLDLIST, a database of known maximum ages that individual trees of different species have attained at the time of sampling from around the world.May 2019: OLDLIST has two new 2000 year-old trees, one in North Carolina and the other in China, to report.