Longest Canyons Length Comparison (KM River Cut)
Compare the 10 longest canyons by river cut length, from Yarlung Tsangpo at 504 km to Verdon at 25 scale. Lengths in km and miles with survey sources listed.
Visual comparison
All values
Click any row to load it as Entry A.
| Name | Value | Context | Source |
|---|---|---|---|
| Yarlung Tsangpo Grand Canyon Longest canyon in the world. | 504 kilometers | Tibet, Brahmaputra headwaters | Chinese survey data: Yarlung Tsangpo canyon 504 km long |
| Grand Canyon 58 under Yarlung. | 446 kilometers | Arizona, USA, Colorado River | NPS Grand Canyon spec: 446 km long |
| Fish River Canyon Ranks above Cotahuasi; see notes on order. | 160 kilometers | Namibia, longest in Africa | Namibia survey: Fish River Canyon 160 km long |
| Copper Canyon Barrancas Six canyon complex. | 120 kilometers | Chihuahua, Mexico, canyon system | Mexican survey: Copper Canyon system about 120 km |
| Cotahuasi Canyon Deepest ramekins debated; length here. | 100 kilometers | Arequipa, Peru | Peruvian survey: Cotahuasi about 100 km long |
| Colca Canyon Tied with Cotahuasi. | 100 kilometers | Arequipa, Peru | Peruvian survey: Colca about 100 km long |
| Tara River Canyon Deepest in Europe here. | 82 kilometers | Montenegro and Bosnia | Montenegro survey: Tara Canyon 82 km long |
| Kings Canyon Australia Walk rim anchor for scale. | 30 kilometers | Northern Territory, kept for scale | Parks Australia guides: Kings Canyon about 30 km |
| Blyde River Canyon Green canyon anchor. | 26 kilometers | Mpumalanga, South Africa | South Africa survey: Blyde 26 km long |
| Verdon Gorge Beautiful limestone gorge. | 25 kilometers | Provence, France | French survey: Verdon Gorge 25 km long |
About this converter
Yarlung Tsangpo runs 504 km in Tibet, 58 clear of Grand Canyon at 446 in Arizona. Fish River at 160, Copper Canyon system at about 120, Cotahuasi and Colca at about 100 each, Tara at 82, Kings Canyon at about 30 for scale, Blyde at 26 and Verdon at 25 follow. Lengths count river cut canyon rims. Depths rank on a separate canyon page, so meters deep stay out here. Cotahuasi versus Colca deepest debates stay out since lengths rank here.
How to use it
Pick two canyons and a unit in the top row. The three boxes below stay linked. Change any box and the other two update. Try Yarlung against Verdon to see the 20 times gap. The bars below use a log scale since max runs 20 times min, so small bars stay visible. Switch the unit to miles for US figures. Ratios are exact divisions of the canyon lengths.
Fish River at 160 ranks above Cotahuasi and Colca at about 100 despite draft table quirks. About stays in rows where surveys round. Depths rank on canyon-depth-comparison, so this page keeps lengths only. Figures follow national surveys. Rim to rim versus river cut methods shift totals by km.
FAQ
What is the longest canyon?
Yarlung Tsangpo at 504 km in Tibet. Grand Canyon follows at 446.
Is this the same as canyon depths?
No. Depths rank elsewhere. This page keeps river cut lengths.
How long is Fish River Canyon?
160 km in Namibia. Longest in Africa here.
Why list Kings Canyon?
For scale at about 30 km. Rim walk anchor.
Sources
- National surveys river cut lengths: Yarlung Tsangpo 504; Grand Canyon NPS 446; Fish River 160; Copper Canyon system about 120; Cotahuasi about 100; Colca about 100; Tara 82; Kings Canyon about 30 scale; Blyde 26; Verdon 25 km long
Last verified: 2026-10-09 · 10 entries
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