Here are some possibilities, <a href="https://marketplace.roll20.net/browse/set/1795/mou" rel="nofollow">https://marketplace.roll20.net/browse/set/1795/mou</a>... <a href="https://marketplace.roll20.net/browse/set/2270/nat" rel="nofollow">https://marketplace.roll20.net/browse/set/2270/nat</a>... <a href="https://marketplace.roll20.net/browse/set/2030/ret" rel="nofollow">https://marketplace.roll20.net/browse/set/2030/ret</a>... Also, there happens to be one nice Cliff face map, in The Master's Vault, which is a Free demo module from Roll20. It is not a cliff-overlay drag-and-drop, but is a singular map of a cliff-face encounter area, it's a nice encounter area map, <a href="https://marketplace.roll20.net/browse/module/23/th" rel="nofollow">https://marketplace.roll20.net/browse/module/23/th</a>...