Erosion patterns in limestone also known geologically as rillenkaren. Wookey Hole has the best-known example of this phenomenon in the UK - Smartphone Captured Stock Imagehttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/erosion-patterns-in-limestone-also-known-geologically-as-rillenkaren-wookey-hole-has-the-best-known-example-of-this-phenomenon-in-the-uk-image634077409.html
RM2YRGM5N–Erosion patterns in limestone also known geologically as rillenkaren. Wookey Hole has the best-known example of this phenomenon in the UK