Marden Copse

Images

7 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 (2)

diagram cropcirclecenter.com / Bertold Zugelder site default diagram cropcirclecenter.com / Bertold Zugelder site default

Photographs (5)

aerial Steve Alexander image credit aerial Steve Alexander / Temporary Temples site default aerial Steve Alexander / Temporary Temples site default aerial Steve Alexander / Temporary Temples site default aerial Steve Alexander / Temporary Temples site default

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.

Marden Copse, Wilts | 7th September 2020

tt temporarytemples.co.uk · archive_image · 7 September 2020 · matched on date and place by the index (not confirmed by hand) · rule attach, tier B, score 0.90 · pair a9c1add9ccb1 · decided 2026-09-15T03:03:25Z

• attachment: tt archive_image marden-copse-wilts-7th-september-2020
• date 2020-09-07 vs 2020-09-07 (delta +0 d)
• name tokens shared: marden
• county Wiltshire == Wiltshire
• country UK (uk_county) == UK (cc_id)
• the only entity the photograph's date and place fit (UK20200907_A)

aerial Steve Alexander / Temporary Temples site default

site	kind	credit	basis	caption	size	file	source page
tt	aerial	Steve Alexander / Temporary Temples	site default	Marden Copse, Wilts | 7th September 2020	1200×946 2.5 MiB image/jpeg	image 2ecb2a4ccdb6	https://temporarytemples.co.uk/crop-circles/2020-crop-circles

Date

7 September 2020, to day precision. What a source records is the day a formation was found and reported.

reported by

cc: 7 September 2020 tt: 7 September 2020

weekday

Monday, day 251 of the year, ISO week 37, autumn

sun and moon

15.1 days before the September equinox; moon waning gibbous (76% lit), 5.3 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

51.301979, -1.890094 — exact, ±50 m, by map_link, from the tt record

on a map

OpenStreetMap

The source's own map link: https://goo.gl/maps/mcYrpag31aQgsxFbA

Crop and size

crop

mustard (cc: mustard, tt: mustard seed?)

diameter

25 ft (7.6 m)

size as written

not recorded

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.

Texts

1 document(s), each attached to the record whose page hosts it. These are other people's words: quoted here in short attributed extract, with a link to the page that published each one in full.

Geometry

2 diagram file(s) on this page, of which 1 is a shared cropcirclecenter placeholder rather than a drawing of this formation. 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.

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 613759ce— 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

Chirton Bottom 5 September 2020, Chirton Bottom

next

Roundway Devizes 13 September 2020, Roundway Devizes

previous in UK

Chirton Bottom 5 September 2020

next in UK

Roundway Devizes 13 September 2020

same day

no other formation is dated this day

within 7 days and 25 km

Chirton Bottom 5 September 2020, 193 m away, 2 day(s) apart · Roundway Devizes 13 September 2020, 9.4 km away, 6 day(s) apart

In place

The nearest formations the archive can place.

Chirton Bottom5 September 2020
Chirton Bottom
193 m away, 2020-09-05 Chirton Bottom16 June 2010
Chirton Bottom
1.3 km away, 2010-06-16 Chirton7 August 2002
Chirton
1.4 km away, 2002-08-07 Chirton9 August 2005
Chirton
1.4 km away, 2005-08-09 Chirton27 July 2011
Chirton
1.4 km away, 2011-07-27 Chirton31 July 2013
Chirton
1.4 km away, 2013-07-31

same county and year

Potterne 28 May 2020 · Cley Hill 30 May 2020 · Marlborough 11 June 2020 · Barbury Castle 14 June 2020 · Wilton 17 June 2020 · Berwick Bassett 21 June 2020 · Ogbourne St George 25 June 2020 · Stanton St Bernard 7 July 2020 · Easton Royal 10 July 2020 · Cley Hill 11 July 2020 · West Knoyle 12 July 2020 · Luxenborough 16 July 2020 · Etchilhampton 17 July 2020 · Uffcott 22 July 2020 · Hackpen Hill 23 July 2020 · Etchilhampton 26 July 2020 · Yarnbury Castle 26 July 2020 · Hackpen Hill 30 July 2020 · Potterne 4 August 2020 · Heytesbury 7 August 2020 and 3 more

Provenance

entity built at

2026-09-15T03:03:25Z (derived from the link decisions, not from this build)

index run ids

20260911T192039Z-index-build, 20260915T030325Z-index-build

reviews applied

none

open queue pairs

none

entity record

index/formations/UK20200907_A.json · row in index/manifest.jsonl

input digests

entity 75d3dd845531 · images 1495ea2663cf · attachments 56592efb5ce5 · texts ab90cdec4da8 · geo e242b74935fe