Silbury Hill
UK19940525_A25 May 1994·Silbury Hill, Wiltshire·barley
Reported 25 May 1994 in barley at Silbury Hill, Wiltshire. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 25 May 1994 (day precision)
- place
- Silbury Hill
Wiltshire
England - crop
- barley
- size
- 69 ft (21.0 m) across
as written: 21 m | 69 ft - recorded by
- cc
- images
- 1 · 1 diagram
- writing
- nothing was written about this formation on any source
Also called
Nothing else. No other name or place string appears on any source record for this formation.
Where exactly
- coordinate
- 51.415755, -1.857405
- how it was got
- os open names
place, to within 2,000 m, from the cc record - on a map
- OpenStreetMap
No source publishes a coordinate for any formation in this archive. Every coordinate here is derived from the place name a source printed, and this page says how precise that makes it rather than rounding it away.
Images
1 image(s) on this formation's own source records. Click a tile for the full image; the bytes are fetched when you ask for them and are not stored in this page.
Diagrams (1)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| cc | diagram | cropcirclecenter.com / Bertold Zugelder | site default | 575×415 34.3 KiB image/jpeg |
image 38cc30cd7d65 | https://www.cropcirclecenter.com/date/1994/199405.html |
Date
25 May 1994, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 25 May 1994
- weekday
- Wednesday, day 145 of the year, ISO week 21, spring
- sun and moon
- 27.1 days before the June solstice; moon full (100% lit), on the full moon (computed at 12:00 UTC; a reported date is a discovery date, not a creation date)
Place
What each source printed, and the coordinate derived from it. No source in this archive publishes a coordinate of its own.
- coordinate
- 51.415755, -1.857405 — place, ±2,000 m, by os_open_names, from the cc record
- on a map
- OpenStreetMap
| site | place | county | country | grid ref | what3words | fix |
|---|---|---|---|---|---|---|
| cc | Wiltshire | England | 51.415755, -1.857405 place / os_open_names |
Crop and size
- crop
- barley (cc: barley)
- diameter
- 69 ft (21.0 m)
- size as written
- 21 m | 69 ft
Source records
What each source published, side by side. A row whose values differ across the sources is marked: the archive prints the disagreement rather than choosing a winner.
| field | cc cropcirclecenter.com |
|---|---|
| id / slug | UK19940525_A |
| name | Silbury Hill |
| location | |
| county | Wiltshire |
| country | England |
| date reported | 1994-05-25 |
| date precision | day |
| crop | barley |
| size | 21 m | 69 ft |
| diameter (ft) | 69 |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1994/199405.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | no_formation_page |
| record | cc/ae23ce220dbcc… raw record view: /formation/cc/ae23ce220dbcc8616e44d2cd1126f5066e0dd6931270201dcf45ac03815b61e6 in the preview app |
Texts
no text documents in the archive for this formation
Claims about this formation
no claim was extracted from a text about this formation
Geometry
1 diagram file(s) on this page. measured from the diagram itself, and experimental: the extractor's rotational order is right on 88.8 % of a 200-diagram hand-labelled set against a gate of 90 %, so read a number here beside the picture rather than instead of it.
| diagram | rotational symmetry | elements | rings | mirror | fill |
|---|---|---|---|---|---|
| cc 38cc30cd | ≈ continuous (concentric circles) | 2 | 1 | 0.997 | 0.3349 |
Experimental, and marked ≈ wherever it appears. These numbers are read off a drawing, not off the field: the extractor's rotational order agrees with a hand-labelled set on 88.8 per cent of 200 diagrams against a gate of 90 per cent, its element count is within one on 97.5 per cent, and its ring count is not calibrated at all. Nothing in the analysis tree is derived from the rotational order while that gate is unmet.
Diagrams that look like these: cc 38cc30cd— the nearest by perceptual hash. The whole archive is browsable by shape in the shape section, and this formation's own diagrams go straight into that grid: show them in the grid.
Neighbours
In time
- previous
- Beckhampton 23 May 1994, Beckhampton
- next
- Cherhill 26 May 1994, Cherhill
- previous in UK
- Beckhampton 23 May 1994
- next in UK
- Cherhill 26 May 1994
- same day
- no other formation is dated this day
- within 7 days and 25 km
- West Kennett 22 May 1994, 1.2 km away, 3 day(s) apart · Beckhampton 23 May 1994, 1.2 km away, 2 day(s) apart · Berwick Bassett 28 May 1994, 4.8 km away, 3 day(s) apart · Cherhill 26 May 1994, 6.5 km away, 1 day(s) apart · Preshute Downs 18 May 1994, 7.4 km away, 7 day(s) apart · Blackland 27 May 1994, 8.8 km away, 2 day(s) apart · Barbury Castle 29 May 1994, 9.2 km away, 4 day(s) apart
In place
The nearest formations the archive can place.
Silbury Hill15 July 1988Silbury Hill
0 m away, 1988-07-15
Silbury Hill26 July 1988Silbury Hill
0 m away, 1988-07-26
Silbury Hill30 July 1988Silbury Hill
0 m away, 1988-07-30
Silbury Hill10 May 1989Silbury Hill
0 m away, 1989-05-10
Silbury Hill23 June 1989Silbury Hill
0 m away, 1989-06-23
Silbury Hill28 June 1989Silbury Hill
0 m away, 1989-06-28
- same county and year
- Northdown July 1994 · Avebury Stone Avenue 2 February 1994 · Avebury Stone Avenue February 1994 · Avebury 23 April 1994 · Avebury 25 April 1994 · Beckhampton 26 April 1994 · Beckhampton 27 April 1994 · Avebury Stone Avenue May 1994 · Barbury Castle 1 May 1994 · Monkton Down 2 May 1994 · Newbury 3 May 1994 · Beckhampton 5 May 1994 · Morgans Hill 7 May 1994 · West Overton 7 May 1994 · Beckhampton 14 May 1994 · Preshute Downs 18 May 1994 · West Kennett 22 May 1994 · Beckhampton 23 May 1994 · Cherhill 26 May 1994 · Blackland 27 May 1994 and 59 more
Provenance
- entity built at
- 2026-09-11T19:20:39Z (derived from the link decisions, not from this build)
- index run ids
- none
- reviews applied
- none
- open queue pairs
- none
- entity record
- index/formations/UK19940525_A.json · row in index/manifest.jsonl
- input digests
- entity 0583776b4b17 · images d8a0da84d8a8 · texts 4f53cda18c2b · geo c92c4038fd56