Saucer Barrow

A saucer barrow is a specialized regional class of Early Bronze Age funerary earthwork belonging to the "Fancy Barrow" repertoire of the Wessex Culture in southern England (c. 2100–1600 cal BCE). First distinguished as a distinct morphological variant of the round barrow by John Thurnam in Archaeologia (1871) and mapped exhaustively by Leslie V. Grinsell across Wiltshire, Dorset, Hampshire, Oxfordshire, Sussex, and the Gloucestershire Cotswolds between 1934 and 1959, a saucer barrow takes its name from its shallow, gently concave-convex cross-section resembling an inverted tea saucer set inside a rimmed dish. Measuring 20 to 35 meters in overall diameter, the monument consists of a broad, very low circular central mound (rarely more than 0.3 to 0.9 meters high) that fills the entire interior area up to the inner lip of a concentric circular quarry ditch, which is in turn enclosed around its outer circumference by a low raised earthen bank (0.3 to 0.6 meters high).

Within the classical Hoare–Thurnam–Grinsell typology of British round barrows, roughly 70 to 90 surviving or ploughed-out saucer barrows are documented across southern Britain—making them substantially rarer than standard hemispherical bowl barrows (~30,000 examples), bell barrows (~350 examples), or disc barrows (~170 examples), and slightly more common than sunken pond barrows (~60 examples).

In field survey and high-resolution airborne LiDAR (Light Detection and Ranging) digital terrain modeling, a saucer barrow is differentiated from its fellow Wessex "Fancy Barrows" by three strict geometric criteria:

1. Continuous Low Central Mound without a Flat Berm: Whereas a disc barrow features a broad, level circular interior platform (berm) occupied by only one to three tiny, sharply defined central tumps (each 3 to 6 meters wide), the central mound of a saucer barrow spreads continuously from edge to edge across the entire 14-to-24-meter interior island, rising in a gentle, low dome to a central apex less than 1 meter high.
2. External Bank Outside the Quarry Ditch: Unlike an ordinary bowl barrow or bell barrow—where all chalk rubble and topsoil excavated from the circular quarry ditch were cast inward onto the central funerary mound—the builders of a saucer barrow cast part of the excavated chalk spoil outward to form a continuous concentric outer bank surrounding the ditch, creating an enclosed circular architecture reminiscent of a miniature henge sanctuary without entrances.
3. Color Contrast on the Chalk Downlands: Geoarchaeological sectioning of saucer barrows on Salisbury Plain and Snail Down shows that the broad low central mound was typically built from dark humic turf sods stripped from the surrounding downland pasture, whereas the outer bank was capped with brilliant white Upper Chalk rubble (CaCO₃) quarried from the bottom of the ditch—producing a striking dark-center / white-ring bullseye pattern when viewed from adjacent ridge crests.

Over 60% of all recorded saucer barrows lie in Wiltshire (particularly inside the Stonehenge World Heritage Site, Snail Down, Conholt Park, Lambourn Seven Barrows, and the Avebury / Windmill Hill environs), with secondary outliers on the Dorset Ridgeway, the Hampshire Downs, the Isle of Wight, and the Oxfordshire/Gloucestershire Cotswolds.

Although early nineteenth-century trenching by William Cunnington and Sir Richard Colt Hoare recovered fewer ostentatious gold or amber ornaments from saucer barrows than from neighboring bell barrows (such as Bush Barrow) or disc barrows, modern stratigraphic excavations—most notably Nicholas Thomas's complete quadrant excavation of Site V at Snail Down on Salisbury Plain (1953–1957, published 2005)—have clarified their funerary role and chronology:

1. Crouched Inhumation-to-Cremation Transition (c. 2100–1600 cal BCE): Unlike disc barrows (which predominantly contain cremations), saucer barrows span the pivotal Early Bronze Age ritual transition from late Bell Beaker / Food Vessel crouched inhumations to unurned or Collared Urn cremations. Several Wiltshire saucer barrows cover a central oval grave cut into the solid chalk containing either a single flexed skeleton or a heap of washed, bone-white cremated human bone placed in a cloth or leather bag fastened with a copper-alloy awl or bone pin.
2. Grave Goods: Excavated grave assemblages from saucer barrows include Collared Urns, miniature Pygmy Cups (perforated ceramic incense cups), grooved or flat bronze daggers, bronze awls, perforated whetstones, and occasional segmented faience, amber, or shale beads.
3. Relationship to Earlier Beaker Settlement: At Snail Down, Nicholas Thomas demonstrated that the saucer barrow and neighboring fancy barrows were erected directly atop earlier Chalcolithic Bell Beaker domestic midden spreads and stake-built structures—suggesting that the low, wide turf-stripped platform of the saucer barrow deliberately memorialized an ancestral living site before sealing it inside an outer ritual bank.

How do you tell a saucer barrow apart from a disc barrow in the field?

Both disc barrows and saucer barrows have an outer circular bank surrounding an internal quarry ditch. However, inside a disc barrow, the enclosed space is a flat, level grassy platform with one, two, or three tiny isolated molehill-like mounds (tumps) sitting in the middle. Inside a saucer barrow, the entire enclosed island is covered by a single wide, gently curved dome of earth that slopes smoothly all the way out to the inner edge of the ditch.

Why are saucer barrows, disc barrows, bell barrows, and pond barrows called "Fancy Barrows"?

British archaeologists use the collective term "Fancy Barrows" (coined in the twentieth century following Leslie Grinsell's surveys) to group the four architecturally elaborate Early Bronze Age earthwork forms (bell, disc, saucer, and pond barrows) that required careful geometric layout of berms, outer banks, or sunken basins—setting them apart from the simple hemispherical mounds of ordinary bowl barrows.

Why are so few saucer barrows visible today compared to bowl barrows?

Because the central mound of a saucer barrow was never more than 0.3 to 0.9 meters high and its outer bank stood only ~0.5 meters tall, a single generation of mechanized twentieth-century deep ploughing on the chalk downs of Wiltshire and Dorset was enough to level the earthwork—leaving many former saucer barrows detectable today only as concentric ring ditches in aerial cropmark photography or fluxgate gradiometer geophysical surveys.

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2. Thomas, N. (2005). Snail Down, Wiltshire: The Bronze Age Barrow Cemetery and Related Earthworks, in the Parishes of Collingbourne Ducis and Collingbourne Kingston: Excavations, 1953, 1955 and 1957. Wiltshire Archaeological and Natural History Society Monograph 3. https://doi.org/10.1017/S0003581500000329
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5. Field, D. (1998). "Round barrows and the harmonious landscape: Placing Early Bronze Age burial monuments in south-east England." Oxford Journal of Archaeology, 17(3), 309–326. https://doi.org/10.1111/1468-0092.00065