Heaven Sword - a whopping big tree

@JudyEv (383517)
Rockingham, Australia
June 28, 2026 9:17pm CST
The Taiwan Forestry Research Institute has been running a decade-long project to map the tallest trees in the country. They’ve now found a 1,000-year-old tree that measures 84.1 metres (276 feet). Called Heaven Sword, trees of this nature create mini-ecosystems of their own, providing support for orchids and flying squirrels. They also store as much carbon as a stand of mid-sized trees. Heaven Sword is a genus of cypress (Taiwania cryptomerioides), once found across the northern hemisphere but now mostly in Taiwan’s mountainous regions with small numbers in China, Vietnam and Myanmar. During COVID-19 lockdowns, some 400 volunteers worked from home to help verify data from light detection and ranging (LIDAR). There are just over 50,000 trees believed to be above 60m tall. I would get dizzy looking up at such trees. The photo is of a stand of eucalypt trees.
11 people like this
10 responses
@FourWalls (87263)
• United States
9h
I wonder how they give us an accurate height measurement of those trees.
4 people like this
@Fleura (35399)
• United Kingdom
5h
If you can get a clear view of an object you can measure its height quite easily by triangulation. Its difficult if the tree is in thick forest though.
3 people like this
@AliCanary (4547)
7h
Perhaps using a drone carrying an altimeter or GPS.
4 people like this
@JudyEv (383517)
• Rockingham, Australia
5h
@AliCanary @FourWalls I found this in another article. LiDAR is a sophisticated 3D scanning technique that transmits laser pulses from an aircraft toward the ground. By measuring how long it takes for the light to bounce back, the system generates a highly detailed 3D map of the landscape, revealing the height of the trees. This is the article:
https://phys.org/news/2026-06-heaven-sword-crowned-east-asia.html.
2 people like this
@LadyDuck (503542)
• Italy
9h
That is a very tall tree, I am glad that they are checking the trees instead of destroying forest. I have read that they use methods such as trigonometry to measure tree, but I still have to understand how it works. I always hated math.
3 people like this
@LadyDuck (503542)
• Italy
5h
@JudyEv This is a real shame.
1 person likes this
@Fleura (35399)
• United Kingdom
5h
It's actually very simple. You look at the top of the object you want to measure and use an instrument to measure the angle (you can make one using a piece of cardboard and a piece of string). Then you measure your distance to the base of the object (you can just estimate this in paces, for example, if you don't need to be exact). Then you can work it out. See here:
https://www.instructables.com/Using-a-clinometer-to-measure-height/
1 person likes this
@JudyEv (383517)
• Rockingham, Australia
5h
These trees are very susceptible to climate change apparently which is a shame.
2 people like this
@Tampa_girl7 (54762)
• United States
11h
I love trees. That is a very tall one.
2 people like this
@JudyEv (383517)
• Rockingham, Australia
5h
I think I read it's three storeys high which is pretty amazing.
2 people like this
@Tampa_girl7 (54762)
• United States
1h
@JudyEv It really is. Hopefully it stands for many more years.
1 person likes this
@Deepizzaguy (122738)
• Lake Charles, Louisiana
10h
I know what you mean since looking up at the height of trees is scary.
2 people like this
@JudyEv (383517)
• Rockingham, Australia
5h
It makes my head spin.
1 person likes this
@AliCanary (4547)
7h
Sounds cool! We have trees in our country, sequoias, that are absolutely immense. They hollowed out a tunnel through the trunk of one that you could drive a car through.
2 people like this
@JudyEv (383517)
• Rockingham, Australia
5h
We had a karri tree that you could back into but I don't think the road went right through. I can't find my photo of it at the moment.
2 people like this
@teamfreak16 (43875)
• Denver, Colorado
11h
Impressive, but you're right. I wouldn't want to be looking up at that.
2 people like this
@JudyEv (383517)
• Rockingham, Australia
5h
I'd probably fall over.
1 person likes this
@snowy22315 (209765)
• United States
2h
They are gigantic.
1 person likes this
@JudyEv (383517)
• Rockingham, Australia
51m
I'm having trouble imagining a tree that tall.
@wolfgirl569 (136596)
• Marion, Ohio
30m
Those are large trees
@Fleura (35399)
• United Kingdom
5h
The huge trees that still exist in places like that and in parts of America and Australia are awe-inspiring to someone from a country where even the most venerable trees only reach about 30 metres. Imagine what the first Europeans must have felt when they saw them!
1 person likes this
@JudyEv (383517)
• Rockingham, Australia
5h
I hadn't thought about Britain not having really high trees. And the group settlers that came to the south-west of our state were expected to clear their land of such trees with an axe! So they were obviously felled with axes but expecting an inexperienced man to clear enough for a farm was ludicrous.
1 person likes this
• Torrington, Connecticut
48m
That’s incredible imagine a tree standing there for a thousand years, quietly surviving everything from storms to wars to entire civilizations changing around it. “Heaven Sword” is a fitting name.