Pumlumon Fawr ( a hill name that is said to derive from the same root that gives us the Lomond Hills- a connection not as evident when using the anglicised version -'Plynlimon').
Here you go then. The first two photos put Moel Hebog (aka "TheFloating Mountain") into perspective. Yep the quiz was pretty tricky but I thought it would be a dead give-away if I'd posted these pics first as there's some obvious landmarks.