Silbury Hill
UK20060621_C21 June 2006·Silbury Hill, Wiltshire·wheat
Possibly the same formation as: these cross-site pairs are still open in the index review queue.
-
Avebury (Avebury)(lp, tier C, score 0.60, rule county_only, pair 0e234b26)
date 2006-06-21 vs 2006-06-21 (delta +0 d); county Wiltshire == Wiltshire; country UK (cc_id) == UK (country_field)
Reported 21 June 2006 in wheat at Silbury Hill, Wiltshire. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 21 June 2006 (day precision)
- place
- Silbury Hill
Wiltshire
England - crop
- wheat
- size
- 118 ft (36.0 m) across
as written: 36 m | 118 ft - recorded by
- cc
- images
- 3 on the record, 2 attached · 2 diagram, 1 aerial
- 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
3 image(s) on this formation's own source records, and 2 more on 2 attached record(s) below. Click a tile for the full image; the bytes are fetched when you ask for them and are not stored in this page.
Diagrams (2)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| cc | diagram | cropcirclecenter.com / Bertold Zugelder | site default | crop circle at Silbury Hill | June 21 2006 | 575×415 45.0 KiB image/jpeg |
image 6db4f625b298 | https://www.cropcirclecenter.com/ccdata/2006/06/21/UK20060621_C.html |
| cc | diagram | cropcirclecenter.com / Bertold Zugelder | site default | 575×415 45.0 KiB image/jpeg |
image 6db4f625b298 | https://www.cropcirclecenter.com/date/2006/200606.html |
Photographs (1)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| cc | aerial | Lucy Pringle | image credit | crop circle at Silbury Hill | June 21 2006 | 575×415 104.7 KiB image/jpeg |
image e6a63da481bb | https://www.cropcirclecenter.com/ccdata/2006/06/21/UK20060621_C.html |
Attached photographs (2)
inferred link These pictures did not come with a source record of this formation. Each one is a single-photograph archive entry whose own date and place the index matched to this formation; nothing about the formation itself comes from them. The rule, the score and the evidence are printed with each record so the link can be checked, and the credit stays with the photograph.
Date
21 June 2006, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 21 June 2006
- weekday
- Wednesday, day 172 of the year, ISO week 25, summer
- sun and moon
- on the June solstice; moon waning crescent (19% lit), 9.7 days after 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
- wheat (cc: wheat)
- diameter
- 118 ft (36.0 m)
- size as written
- 36 m | 118 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 | UK20060621_C |
| name | Silbury Hill |
| location | |
| county | Wiltshire |
| country | England |
| date reported | 2006-06-21 |
| date precision | day |
| crop | wheat |
| size | 36 m | 118 ft |
| diameter (ft) | 118 |
| grid reference | |
| what3words | |
| map link | |
| credits | Lucy Pringle, cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/2006/200606.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | none |
| record | cc/99e247187e7c1… raw record view: /formation/cc/99e247187e7c1fae5e272a02041e3cca0d79791ce76aa4f3558d4e77ad9901dd 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
2 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 6db4f625 | ≈ 3-fold score 0.86 | 2 | 2 | 1.0 | 0.397 |
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 6db4f625— 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
- Windmill Hill 20 June 2006, Windmill Hill
- next
- Bluebell Hill 22 June 2006, Bluebell Hill
- previous in UK
- Windmill Hill 20 June 2006
- next in UK
- Bluebell Hill 22 June 2006
- same day
- Martham (Martham) · Martham (Martham) · Somerton (Somerton) · Avebury (Avebury)
- within 7 days and 25 km
- none, or this formation has no coordinate at place confidence or better
In place
The nearest formations the archive can place.
Silbury Hill
0 m away, 1988-07-15
Silbury Hill
0 m away, 1988-07-26
Silbury Hill
0 m away, 1988-07-30
Silbury Hill
0 m away, 1989-05-10
Silbury Hill
0 m away, 1989-06-23
Silbury Hill
0 m away, 1989-06-28
- same county and year
- Avebury 18 May 2006 · West Overton 9 June 2006 · Marlborough 12 June 2006 · Avebury Trusloe 30 June 2006 · Beckhampton July 2006 · Savernake Forest 8 July 2006 · Aldbourne 11 July 2006 · Liddington Castle 11 July 2006 · Barbury Castle 14 July 2006 · West Overton 15 July 2006 · Marlborough 17 July 2006 · West Overton 19 July 2006 · Milk Hill 22 July 2006 · Windmill Hill 22 July 2006 · East Kennett 26 July 2006 · Alton Priors 28 July 2006 · Woodborough Hill 28 July 2006 · Alton Priors 30 July 2006 · Hackpen Hill 1 August 2006 · Old Sarum 1 August 2006 and 8 more
Provenance
- entity built at
- 2026-09-15T03:03:25Z (derived from the link decisions, not from this build)
- index run ids
- 20260915T030325Z-index-build
- reviews applied
- none
- open queue pairs
- 0e234b26c1351cad1342eb8ade07e338990fc04f92dba22bfcc2b39a8429abe6
- entity record
- index/formations/UK20060621_C.json · row in index/manifest.jsonl
- input digests
- entity 8b83631f0b31 · images 6a48bf167822 · attachments 06b118495b9b · texts 4f53cda18c2b · geo 3c40a1ade851