another two of a kind-ish

[nunyabiz111]

along with the one from last winter on the right:












thanks for looking!

 

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[Charlie P. (NY)]

Yep. You have some softer rock sediments under (or over?) harder rock sediments there.

 

[MAMucker]

Yes. Weathered sedimentary rock. Not made by man.

 

[Charl]

Differential weathering. On a larger scale, because it’s the same weathering process involved, think “hoodoos” at Bryce Canyon National Park….