After visiting Yosemite and Mono Lake, my friend and I went up into the White Mountains to do some camping and hiking. The number one attraction while up there, besides the natural beauty, is the ancient bristlecone pine forest.

These trees are awesome and surreal. All twisted, gnarled, part dead and part alive, and old, so old it's humbling.

The number one killer of these ancients isn't bugs or microbes (too high up, too cold, too dry, the wood is too hard), or fire (to high up, too widely spaced), it's erosion. They last so long the land around them eventually crumbles away.

On the trail to the Methuselah Grove, with two dozen trees more than 4000 years old. The trail itself is rather scenic, btw.

The entrance to the Methuselah Grove, home of the oldest living things on the planet. One tree is the oldest of the old, the Methuselah tree at 4839 years (it was hundreds of years old when the Great Pyramid of Giza was built), but they don't identify it specifically for (legit) fears of vandalism.

Maybe it's this one. The highly accurate tree ring records from these trees are an immense boon to paleo-climate studies. They've even been used to calibrate our standard dating methods, like carbon-14.

Or one of these. One survival mechanism of these trees is to gradually shut down parts of themselves to conserve resources in a harsh environment (6 week growing season!), eventually leaving only a thin strip of bark with nutrients flowing.

This one is my personal guess as to the oldest. Some are right along the trail and you can touch them. They
feel 4000 years old is the best way to describe it.

The fallen bristlecones erode due to wind and (very little) water faster than they decay. Chaining tree ring records together, dendrochronologists have determined that some of the wood laying around is
up to 10,000 years old.
While bristlecone pines are all over this region, there are two attractions maintained by the NPS. One is where the oldest trees are, the other where the biggest are. The biggest grow in a grove near treeline (~11,500 to 12,000 ft). The 12 mile dirt road to get there is an adventure in itself.

No one knows for sure why they grow so big up here. Speculation is that it is a genetic mutation, like a family where all the kids are 7 feet tall.

The biggest of the big is called The Patriarch. It's 36 feet in circumference. There's me standing next to it. These trees are old, but not that old. A mere 1000-2000 years is all.