Hackpen Hill
UK19970818_B18 August 1997·Hackpen Hill, Wiltshire·wheat
Possibly the same formation as: these cross-site pairs are still open in the index review queue.
-
Hackpen Hill (Hackpen Hill)(lp, tier C, score 0.70, rule month_place, pair faecc5f5)
date 1997-08-18 vs 1997-08 (day/month); name tokens shared: hackpen; county Wiltshire == Wiltshire; country UK (cc_id) == UK (country_field)
Reported 18 August 1997 in wheat at Hackpen Hill, Wiltshire. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 18 August 1997 (day precision)
- place
- Hackpen Hill
Wiltshire
England - crop
- wheat
- size
- 82 ft (25.0 m) across
as written: 25 m | 82 ft - recorded by
- cc
- images
- 1 on the record, 1 attached · 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
- 51.468306, -1.815723
- 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, and 1 more on 1 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 54.7 KiB image/jpeg |
image a7a414604088 | https://www.cropcirclecenter.com/date/1997/199708.html |
Attached photographs (1)
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.
Hackpen Hill, Wiltshire | 18th August 1997 | Wheat 35mm
tt temporarytemples.co.uk · archive_image · 18 August 1997 ·
matched on date and place by the index (not confirmed by hand) · rule attach, tier B, score 0.90 ·
pair 416404144fd1 · decided 2026-09-15T03:03:25Z
- attachment: tt archive_image hackpen-hill-wiltshire-18th-august-1997-wheat-35mm
- date 1997-08-18 vs 1997-08-18 (delta +0 d)
- name tokens shared: hackpen
- county Wiltshire == Wiltshire
- country UK (uk_county) == UK (cc_id)
- crop wheat == wheat
- the only entity the photograph's date and place fit (UK19970818_B)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| tt | other | Steve Alexander / Temporary Temples | site default | Hackpen Hill, Wiltshire | 18th August 1997 | Wheat 35mm | 800×658 735.9 KiB image/jpeg |
image ba6a590d335c | https://temporarytemples.co.uk/crop-circles/1997-crop-circles |
Date
18 August 1997, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 18 August 1997
- weekday
- Monday, day 230 of the year, ISO week 34, summer
- sun and moon
- 35.5 days before the September equinox; 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
- 51.468306, -1.815723 — 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 | 51.468306, -1.815723 place / os_open_names |
Crop and size
- crop
- wheat (cc: wheat)
- diameter
- 82 ft (25.0 m)
- size as written
- 25 m | 82 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 | UK19970818_B |
| name | Hackpen Hill |
| location | |
| county | Wiltshire |
| country | England |
| date reported | 1997-08-18 |
| date precision | day |
| crop | wheat |
| size | 25 m | 82 ft |
| diameter (ft) | 82 |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1997/199708.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | no_formation_page |
| record | cc/2d8e0d5c4f711… raw record view: /formation/cc/2d8e0d5c4f711b97607058c77190a7b5dfbb9669136e114695c82e735d5ebb15 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 a7a41460 | ≈ none found | 95 | 1 | 0.871 | 0.391 |
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 a7a41460— 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
- Cuxton 17 August 1997, Cuxton
- next
- Storrington 19 August 1997, Storrington
- previous in UK
- Cuxton 17 August 1997
- next in UK
- Storrington 19 August 1997
- same day
- Alton Barnes (Alton Barnes)
- within 7 days and 25 km
- Milk Hill 21 August 1997, 10.4 km away, 3 day(s) apart · Alton Barnes 18 August 1997, 12.6 km away, 0 day(s) apart
In place
The nearest formations the archive can place.
Hackpen Hill4 July 1991Hackpen Hill
0 m away, 1991-07-04
Hackpen HIll12 July 1991Hackpen HIll
0 m away, 1991-07-12 Hackpen Hill9 June 1994
Hackpen Hill
0 m away, 1994-06-09 Hackpen HillAugust 1994
Hackpen Hill
0 m away, 1994-08 Hackpen Hill11 June 1997
Hackpen Hill
0 m away, 1997-06-11
Hackpen Hill17 August 1998Hackpen Hill
0 m away, 1998-08-17
- same county and year
- Alton Barnes 27 March 1997 · Alton Barnes 27 March 1997 · Alton Barnes 27 March 1997 · Barbury Castle 20 April 1997 · Littlebury Greene 22 April 1997 · Barbury Castle 6 May 1997 · Barbury Castle May 1997 · Silbury Hill May 1997 · Winterbourne Bassett 1 June 1997 · Fox Hill 8 June 1997 · Stonehenge 9 June 1997 · Hackpen Hill 11 June 1997 · Marlborough 14 June 1997 · Rockley Down 14 June 1997 · Hinton Parva 16 June 1997 · Charlton 29 June 1997 · Bishops Waltham 9 July 1997 · Alton Barnes 11 July 1997 · Woodborough Hill 11 July 1997 · Bishops Cannings 13 July 1997 and 42 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
- faecc5f52e0305d87255663c0e0a9099442e7d19ecc5b6de288aebdd84cad4d1
- entity record
- index/formations/UK19970818_B.json · row in index/manifest.jsonl
- input digests
- entity 85d646311bec · images d87f18a6fb3f · attachments 5b7b1a83b9a1 · texts 4f53cda18c2b · geo b3109b8db058