Grey Hill

About Grey Hill

Rising steeply above the South Ayrshire coast, this Marilyn offers a rugged, grassy climb with an impact far exceeding its modest height. From the summit, you’ll enjoy an exceptional maritime perspective over Ailsa Craig and the Firth of Clyde, reaching across to the Arran peaks and the Mull of Kintyre.

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Did You Know?

• •The name is a simple descriptive one, likely referring to the muted tones of the dry grasses and rocky outcrops that dominate its slopes, a common naming convention for smaller summits across the Southern Uplands.
• •Geologically, the hill is part of the Ballantrae Complex, a rare fragment of ancient oceanic crust. You may spot dark, shiny serpentinite rocks on the ascent, which are characteristic of this unique and globally significant coastal geology.
• •Despite its height falling short of 300 metres, it is classified as a Marilyn because its prominence exceeds 150 metres; it stands as a significant isolated landmark separated from the higher inland hills by the deep Stinchar Valley.
• •The summit serves as a premier viewing gallery for Ailsa Craig—the iconic volcanic plug known as 'Paddy's Milestone'—which sits perfectly framed in the waters of the Firth of Clyde to the west.
• •While the sub-300m height might suggest a gentle stroll, the ascent from the coast is remarkably steep; it is the sort of hill that makes you question the accuracy of your map before you are even halfway up.