Silbury Hill
UK19920816_B16 August 1992·Silbury Hill, Wiltshire·wheat
Possibly the same formation as: these cross-site pairs are still open in the index review queue.
-
Silbury Hill (Silbury Hill)(lp, tier C, score 0.75, rule adjacent_day, pair 51b263f6)
date 1992-08-16 vs 1992-08-17 (delta -1 d); name tokens shared: silbury; county Wiltshire == Wiltshire; country UK (cc_id) == UK (country_field)
Reported 16 August 1992 in wheat at Silbury Hill, Wiltshire. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 16 August 1992 (day precision)
- place
- Silbury Hill
Wiltshire
England - crop
- wheat
- size
- 250 ft (76.2 m) across
as written: 75 m | 250 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 49.6 KiB image/jpeg |
image eca170bad27e | https://www.cropcirclecenter.com/date/1992/199208.html |
Date
16 August 1992, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 16 August 1992
- weekday
- Sunday, day 229 of the year, ISO week 33, summer
- sun and moon
- 37.3 days before the September equinox; moon waning gibbous (92% lit), 3.1 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
- 250 ft (76.2 m)
- size as written
- 75 m | 250 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 | UK19920816_B |
| name | Silbury Hill |
| location | |
| county | Wiltshire |
| country | England |
| date reported | 1992-08-16 |
| date precision | day |
| crop | wheat |
| size | 75 m | 250 ft |
| diameter (ft) | 250 |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1992/199208.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | no_formation_page |
| record | cc/0a3a4df39e918… raw record view: /formation/cc/0a3a4df39e9187ed110ad1ce926fac5299751808d0f7a9df91eb901a9b71f534 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 eca170ba | ≈ none found | 6 | 2 | 0.833 | 0.1635 |
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 eca170ba— 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
- Strathclaire 15 August 1992, Strathclaire
- next
- Avebury 17 August 1992, Avebury
- previous in UK
- Milton Abbas 12 August 1992
- next in UK
- Avebury 17 August 1992
- same day
- Pontilyfni (Pontilyfni)
- within 7 days and 25 km
- Avebury 17 August 1992, 1.4 km away, 1 day(s) apart · Alton Barnes 9 August 1992, 6.5 km away, 7 day(s) apart · Alton Barnes 9 August 1992, 6.5 km away, 7 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
- Lurkeley Hill 10 May 1992 · Avebury Trusloe 14 May 1992 · Urchfont Hill 17 May 1992 · Market Lavington 18 May 1992 · Avebury Trusloe 20 May 1992 · Amesbury 23 May 1992 · Cherhill 23 May 1992 · Cherhill 24 May 1992 · Lockeridge 24 May 1992 · Lockeridge 25 May 1992 · Lockeridge 25 May 1992 · Alton Barnes 29 May 1992 · Upton Scudamore 30 May 1992 · Alton Barnes 2 June 1992 · Lockeridge 4 June 1992 · West Stowell 4 June 1992 · Wroughton 4 June 1992 · Old Sarum 5 June 1992 · Warminster 7 June 1992 · Waden Hill 8 June 1992 and 92 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
- 51b263f6e26fb01088222d02d87f005b1a8cdb828f1027fa39fb05488de08a4d
- entity record
- index/formations/UK19920816_B.json · row in index/manifest.jsonl
- input digests
- entity 53d9630e0611 · images 2f78879404dd · texts 4f53cda18c2b · geo 96a4ca82711f