Very cool textures in this photo I took of the bark of a Doulas Fir (Pine) tree. The large 'canyon-like' features of Douglas Fir Trees are called furrows. The Douglas Fir is not a true fir, hence its scientific name: Pseudotsuga menziesii. 'Pseudo' indicating 'false.'
You can license this photo for commercial use on Pond5: https://www.pond5.com/photo/94772666/close-photograph-black-and-brown-furrowed-tree-bark.html
Copyright Dimitri Marshall: https://www.dimitrimarshall.com