Silbury Hill
UK19990724_B24 July 1999·Silbury Hill, Wiltshire·wheat
Possibly the same formation as: these cross-site pairs are still open in the index review queue.
-
Barbury Castle (2) (Barbury Castle (2))(lp, tier C, score 0.60, rule county_only, pair 373ce471)
date 1999-07-24 vs 1999-07-24 (delta +0 d); county Wiltshire == Wiltshire; country UK (cc_id) == UK (country_field) -
Oakley (Wiltshire)(cc, tier C, score 0.60, rule county_only, pair 3a5b72ec)
date 1999-07-24 vs 1999-07-24 (delta +0 d); county Wiltshire == Wiltshire; country UK (cc_id) == UK (country_field)
Reported 24 July 1999 in wheat at Silbury Hill, Wiltshire. Two archives recorded it, and they give the same date.
The record
- date
- 24 July 1999 (day precision)
- place
- Silbury Hill
Wiltshire
England - crop
- wheat
- size
- 318 ft (96.9 m) across
as written: 97 m | 318 ft - recorded by
- cc lp
- images
- 4 on the record, 5 attached · 1 diagram, 3 other
- writing
- nothing was written about this formation on any source
Also called
Silbury Hill (2)
Canonical name from the cropcirclecenter.com name; the rest are what the other source records print for the same 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
4 image(s) on this formation's own source records, and 5 more on 5 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 (1)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| cc | diagram | cropcirclecenter.com / Bertold Zugelder | site default | 575×415 51.4 KiB image/jpeg |
image d7306b96aa19 | https://www.cropcirclecenter.com/date/1999/199907.html |
Photographs (3)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| lp | other | Lucy Pringle | page credit | A complex fractal shape based on a parallelogram shape. | 568×374 28.5 KiB image/jpeg |
image 575970f2baac | https://www.cropcirclephotographs.co.uk/photos/1999/uk1999dp.shtml |
| lp | other | Lucy Pringle | page credit | A complex fractal shape based on a parallelogram shape. (photo 2) | 571×383 41.9 KiB image/jpeg |
image 64880abd0efb | https://www.cropcirclephotographs.co.uk/photos/1999/uk1999dp.shtml |
| lp | other | Lucy Pringle | page credit | A complex fractal shape based on a parallelogram shape. (photo 3) | 277×413 14.2 KiB image/jpeg |
image fad8d7995adc | https://www.cropcirclephotographs.co.uk/photos/1999/uk1999dp.shtml |
Attached photographs (5)
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.
Silbury Hill, Wiltshire | 24th July 1999 | Wheat L MFYB
tt temporarytemples.co.uk · archive_image · 24 July 1999 ·
matched on date and place by the index (not confirmed by hand) · rule attach, tier B, score 0.90 ·
pair 1fee29934dae · decided 2026-09-15T03:03:25Z
- attachment: tt archive_image silbury-hill-wiltshire-24th-july-1999-wheat-l-mfyb
- date 1999-07-24 vs 1999-07-24 (delta +0 d)
- name tokens shared: silbury
- county Wiltshire == Wiltshire
- country UK (uk_county) == UK (cc_id)
- crop wheat == wheat
- the only entity the photograph's date and place fit (UK19990724_B)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| tt | aerial | Steve Alexander / Temporary Temples | site default | Silbury Hill, Wiltshire | 24th July 1999 | Wheat L MFYB | 434×600 336.3 KiB image/jpeg |
image 091895d13b30 | https://temporarytemples.co.uk/crop-circles/1999-crop-circles |
Silbury Hill, Wiltshire | 24th July 1999 | Wheat CL 35mm
tt temporarytemples.co.uk · archive_image · 24 July 1999 ·
matched on date and place by the index (not confirmed by hand) · rule attach, tier B, score 0.90 ·
pair 726d90619c7e · decided 2026-09-15T03:03:25Z
- attachment: tt archive_image silbury-hill-wiltshire-24th-july-1999-wheat-cl-35mm
- date 1999-07-24 vs 1999-07-24 (delta +0 d)
- name tokens shared: silbury
- county Wiltshire == Wiltshire
- country UK (uk_county) == UK (cc_id)
- crop wheat == wheat
- the only entity the photograph's date and place fit (UK19990724_B)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| tt | aerial | Steve Alexander / Temporary Temples | site default | Silbury Hill, Wiltshire | 24th July 1999 | Wheat CL 35mm | 600×391 300.6 KiB image/jpeg |
image 202e4ed58903 | https://temporarytemples.co.uk/crop-circles/1999-crop-circles |
Silbury Hill, Wiltshire | 24th July 1999 | Wheat P 35mm
tt temporarytemples.co.uk · archive_image · 24 July 1999 ·
matched on date and place by the index (not confirmed by hand) · rule attach, tier B, score 0.90 ·
pair dccb861711b8 · decided 2026-09-15T03:03:25Z
- attachment: tt archive_image silbury-hill-wiltshire-24th-july-1999-wheat-p-35mm
- date 1999-07-24 vs 1999-07-24 (delta +0 d)
- name tokens shared: silbury
- county Wiltshire == Wiltshire
- country UK (uk_county) == UK (cc_id)
- crop wheat == wheat
- the only entity the photograph's date and place fit (UK19990724_B)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| tt | other | Steve Alexander / Temporary Temples | site default | Silbury Hill, Wiltshire | 24th July 1999 | Wheat P 35mm | 800×523 529.8 KiB image/jpeg |
image a27e74514dce | https://temporarytemples.co.uk/crop-circles/1999-crop-circles |
Silbury Hill, Wiltshire | 24th July 1999 | Wheat P2 35mm
tt temporarytemples.co.uk · archive_image · 24 July 1999 ·
matched on date and place by the index (not confirmed by hand) · rule attach, tier B, score 0.90 ·
pair 3e9aa2d634ce · decided 2026-09-15T03:03:25Z
- attachment: tt archive_image silbury-hill-wiltshire-24th-july-1999-wheat-p2-35mm
- date 1999-07-24 vs 1999-07-24 (delta +0 d)
- name tokens shared: silbury
- county Wiltshire == Wiltshire
- country UK (uk_county) == UK (cc_id)
- crop wheat == wheat
- the only entity the photograph's date and place fit (UK19990724_B)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| tt | other | Steve Alexander / Temporary Temples | site default | Silbury Hill, Wiltshire | 24th July 1999 | Wheat P2 35mm | 800×527 451.0 KiB image/jpeg |
image ffc8c6276c63 | https://temporarytemples.co.uk/crop-circles/1999-crop-circles |
Silbury Hill, Wiltshire | 24th July 1999 | Wheat OH 35mm
tt temporarytemples.co.uk · archive_image · 24 July 1999 ·
matched on date and place by the index (not confirmed by hand) · rule attach, tier B, score 0.90 ·
pair 487ca8420722 · decided 2026-09-15T03:03:25Z
- attachment: tt archive_image silbury-hill-wiltshire-24th-july-1999-wheat-oh-35mm
- date 1999-07-24 vs 1999-07-24 (delta +0 d)
- name tokens shared: silbury
- county Wiltshire == Wiltshire
- country UK (uk_county) == UK (cc_id)
- crop wheat == wheat
- the only entity the photograph's date and place fit (UK19990724_B)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| tt | aerial | Steve Alexander / Temporary Temples | site default | Silbury Hill, Wiltshire | 24th July 1999 | Wheat OH 35mm | 600×398 307.1 KiB image/jpeg |
image f55aca2585a4 | https://temporarytemples.co.uk/crop-circles/1999-crop-circles |
Date
24 July 1999, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 24 July 1999 lp: 24 July 1999
- weekday
- Saturday, day 205 of the year, ISO week 29, summer
- sun and moon
- 32.7 days after the June solstice; moon waxing gibbous (85% lit), 4.0 days before 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 | |||
| lp | Silbury Hill (2) | Wiltshire | United Kingdom | none |
Crop and size
- crop
- wheat (cc: wheat, lp: —)
- diameter
- 318 ft (96.9 m)
- size as written
- 97 m | 318 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 | lp cropcirclephotographs.co.uk |
|---|---|---|
| id / slug differs | UK19990724_B | silbury-hill-2-1999 |
| name differs | Silbury Hill | Silbury Hill (2) |
| location | Silbury Hill (2) | |
| county | Wiltshire | Wiltshire |
| country differs | England | United Kingdom |
| date reported | 1999-07-24 | 1999-07-24 |
| date precision | day | day |
| crop | wheat | |
| size | 97 m | 318 ft | |
| diameter (ft) | 318 | |
| grid reference | ||
| what3words | ||
| map link | ||
| credits differs | cropcirclecenter.com / Bertold Zugelder | Lucy Pringle |
| source page differs | https://www.cropcirclecenter.com/date/1999/199907.html | https://www.cropcirclephotographs.co.uk/photos/1999/uk1999dp.shtml |
| link to the entity | rule Bscore 0.90 decided by rule on 2026-09-15 date 1999-07-24 vs 1999-07-24 (delta +0 d); name tokens shared: silbury; county Wiltshire == Wiltshire; country UK (cc_id) == UK (country_field) |
rule Bscore 0.90 decided by rule on 2026-09-15 date 1999-07-24 vs 1999-07-24 (delta +0 d); name tokens shared: silbury; county Wiltshire == Wiltshire; country UK (cc_id) == UK (country_field) |
| warnings | no_formation_page | none |
| record | cc/b951bc25afbc7… raw record view: /formation/cc/b951bc25afbc7321a30ed610d90d9da1b710c4e2b7e4f3f96a4ef3a431fcd42d in the preview app |
lp/a504759496050… raw record view: /formation/lp/a50475949605030154939a9b135042080adfdceae8eda689aeaac726079ae684 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 d7306b96 | ≈ 4-fold score 0.977 | 49 | 1 | 0.89 | 0.3774 |
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 d7306b96— 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
- Wroughton 23 July 1999, Wroughton
- next
- Hagersville 25 July 1999, Hagersville
- previous in UK
- Wroughton 23 July 1999
- next in UK
- Brixworth 25 July 1999
- same day
- Nieuwerkerk (Nieuwerkerk) · Zeddam (Zeddam) · Oakley (Oakley) · Barbury Castle (2) (Barbury Castle (2))
- within 7 days and 25 km
- Waden Hill 29 July 1999, 669 m away, 5 day(s) apart · Beckhampton 17 July 1999, 1.2 km away, 7 day(s) apart · Beckhampton 28 July 1999, 1.2 km away, 4 day(s) apart · Avebury 29 July 1999, 1.4 km away, 5 day(s) apart · Avebury Stone Avenue 29 July 1999, 1.4 km away, 5 day(s) apart · Avebury Stone Avenue 29 July 1999, 1.4 km away, 5 day(s) apart · Avebury Stone Avenue 31 July 1999, 1.4 km away, 7 day(s) apart · East Kennett 18 July 1999, 2.3 km away, 6 day(s) apart · East Kennett 21 July 1999, 2.3 km away, 3 day(s) apart · Clatford 19 July 1999, 6.0 km away, 5 day(s) apart · Stanton St Bernard 21 July 1999, 6.2 km away, 3 day(s) apart · Alton Barnes 18 July 1999, 6.5 km away, 6 day(s) apart · Cherhill 17 July 1999, 6.5 km away, 7 day(s) apart · Woodborough Hill 20 July 1999, 8.1 km away, 4 day(s) apart · Barbury Castle 23 July 1999, 9.2 km away, 1 day(s) apart · Roundway Hill 31 July 1999, 10.1 km away, 7 day(s) apart · Wroughton 23 July 1999, 14.3 km away, 1 day(s) apart · Wroughton 31 July 1999, 14.3 km away, 7 day(s) apart · Liddington Castle 21 July 1999, 16.6 km away, 3 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
- Lac Simon 23 November 1999 · Alton Barnes 20 March 1999 · Milk Hill 3 April 1999 · Marlborough 12 April 1999 · Bishops Cannings 15 April 1999 · Everleigh 19 April 1999 · Woodborough Hill 30 April 1999 · Milk Hill 2 May 1999 · Avebury Trusloe 23 May 1999 · Barbury Castle 31 May 1999 · Barbury Castle 31 May 1999 · All Cannings 11 June 1999 · Alton Barnes 11 June 1999 · Alton Barnes 11 June 1999 · Chiseldon 11 June 1999 · Figheldean 11 June 1999 · Pewsey White Horse 16 June 1999 · Avebury Trusloe 19 June 1999 · Silbury Hill 19 June 1999 · Furze Hill 20 June 1999 and 71 more
Provenance
- entity built at
- 2026-09-15T21:14:17Z (derived from the link decisions, not from this build)
- index run ids
- 20260915T030325Z-index-build, 20260915T211417Z-index-build
- reviews applied
- none
- open queue pairs
- 373ce4711cd07f778ed72bb56de405092842a4fcd5bea33b27eedef8c1e65a4e, 3a5b72ec95eae6c44e03e03391fb10c4f6af06db6099dc0c4c64dfcd3ee99757
- entity record
- index/formations/UK19990724_B.json · row in index/manifest.jsonl
- input digests
- entity aa39898eb02a · images 445168a2568c · attachments 2383f749b9ff · texts 4f53cda18c2b · geo 64c6b701422d