Whitcastles or Little Hartfell () is a stone circle 6½ miles NE of Lockerbie, Dumfries and Galloway. Nine fallen stones lie in an oval measuring 55m by 45m. The largest stones lie to the north and south of the circle; interest in cardinal points is a common feature in the stone circles of the Solway Firth. It was designated as a scheduled monument in 1937.

See also Stone circles in the British Isles and Brittany List of stone circles

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