Some canyons are noncontiguous, 1-2 blocks wide and can form a very straight line.
I think these examples are supposed to be ravines. See attached pics.
Random seed: -6515423362168972464
World type: Default
(Coordinates are slightly rounded. Switch to creative / fly.)
Desert ravine: teleport 1370 100 -960
Savanna ravine: teleport 1580 100 680
Jungle ravine: teleport -240 100 510
Plains ravine: teleport 385 100 100
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Comments 4
This is an intentional terrain generation feature. These are called "cracks". They are a very thin, yet deep type of ravine that rarely generates through the world.
Hey there! I don't think this has to be necessarily a bug. These could represent smaller cracks in the ground like in the real world.