Cockleroi

Cockleroi or Cockleroy is a prominent hill in Scotland. It is Linlithgow's local hill.
On its top there are some remains of an Iron Age's hill fort.
Etymology.
There are multiple explanations for the name "Cockleroi". The most phonetically plausible is derivation from Gaelic "*cochull-ruadh" meaning "red cap, hood or mantle". Less convincing Gaelic derivations are "*cachaileth ruadh", "red gate", "*cuchailte ruadh", "red residence, seat". The name may be Brittonic and derived from "*cloc-erjo-" (from "*clog", "rock, crag, steep cliff", Welsh "clegyr"), suffixed with "rūδ", "red" (Welsh "rhudd"), but this requires double metathesis and unexplained reversion of "-e-" to "–o-".