A basic 2k bog standard canyon terrain made with Worldmachine 2.3, Zip file includes overlay, overlays for masking & the worldmachine tmd file should you want to edit that.
https://drive.google.com/file/d/1_n03JGSOCsWSW9rCBulECkc-jMA_ELDy/view (should be public)
Canyon.jpg
Canyon2.jpg