Blackland

UK19870905_B

5 September 1987·Blackland, Wiltshire

Where it was reported. With no photograph to show, the plate is the place: Blackland, and every formation the archive holds around it. 9 other formations sit on this exact point, because their sources named the same place and gave no finer position. The dashed ring is how precise the fix is (±2,000 m at place confidence), drawn at its true size.

Reported 5 September 1987 at Blackland, Wiltshire. One archive recorded it, so nothing about it can be cross-checked.

The record

date: 5 September 1987 (day precision)
place: Blackland
Wiltshire
England
crop: not recorded by any source
size: not recorded
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: 51.416317, -1.984708
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)

diagram cropcirclecenter.com / Bertold Zugelder site default

site	kind	credit	basis	caption	size	file	source page
cc	diagram no diagram published by cropcirclecenter (plain circle placeholder)	cropcirclecenter.com / Bertold Zugelder	site default		575×415 32.4 KiB image/jpeg	image c782665e5c68	https://www.cropcirclecenter.com/date/1987/198709.html

site

kind

credit

basis

caption

size

file

source page

diagram
no diagram published by cropcirclecenter (plain circle placeholder)

cropcirclecenter.com / Bertold Zugelder

site default

575×415
32.4 KiB image/jpeg

image c782665e5c68

https://www.cropcirclecenter.com/date/1987/198709.html

Date

5 September 1987, to day precision. What a source records is the day a formation was found and reported.

reported by: cc: 5 September 1987
weekday: Saturday, day 248 of the year, ISO week 36, autumn
sun and moon: 18.1 days before the September equinox; moon waxing gibbous (93% lit), 2.3 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: 51.416317, -1.984708 — 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			51.416317, -1.984708 place / os_open_names

site

place

county

country

grid ref

what3words

fix

Wiltshire

England

51.416317, -1.984708 place / os_open_names

Crop and size

crop and size not recorded by any source

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 UK19870905_B

name Blackland

location

county Wiltshire

country England

date reported 1987-09-05

date precision day

crop

size

diameter (ft)

grid reference

what3words

map link

credits cropcirclecenter.com / Bertold Zugelder

source page https://www.cropcirclecenter.com/date/1987/198709.html

link to the entity singleton
decided by none on 2026-09-11

warnings no_formation_page

record cc/0a4c9d531c3db…
raw record view: /formation/cc/0a4c9d531c3db45f4e4f820e162574101e6b338932299935a9b5aaa8802ef809 in the preview app

field	cc cropcirclecenter.com
id / slug	UK19870905_B
name	Blackland
location
county	Wiltshire
country	England
date reported	1987-09-05
date precision	day
crop
size
diameter (ft)
grid reference
what3words
map link
credits	cropcirclecenter.com / Bertold Zugelder
source page	https://www.cropcirclecenter.com/date/1987/198709.html
link to the entity	singleton decided by none on 2026-09-11
warnings	no_formation_page
record	cc/0a4c9d531c3db… raw record view: `/formation/cc/0a4c9d531c3db45f4e4f820e162574101e6b338932299935a9b5aaa8802ef809` 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, 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.

diagram	rotational symmetry	elements	rings	mirror	fill
cc c782665e (placeholder: digest)	≈ continuous (concentric circles)	1	1	0.996	1.0049

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 c782665e— 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: Amesbury September 1987, Amesbury
next: Beckhampton 9 September 1987, Beckhampton
previous in UK: Amesbury September 1987
next in UK: Beckhampton 9 September 1987
same day: Beckhampton (Beckhampton)
within 7 days and 25 km: Beckhampton 31 August 1987, 7.7 km away, 5 day(s) apart · Beckhampton 31 August 1987, 7.7 km away, 5 day(s) apart · Beckhampton 5 September 1987, 7.7 km away, 0 day(s) apart · Beckhampton 9 September 1987, 7.7 km away, 4 day(s) apart

In place

The nearest formations the archive can place.

Blackland1 June 1990
Blackland
0 m away, 1990-06-01

Blackland2 June 1990
Blackland
0 m away, 1990-06-02

Blackland2 June 1990
Blackland
0 m away, 1990-06-02 Blackland14 June 1990
Blackland
0 m away, 1990-06-14

Blackland28 June 1991
Blackland
0 m away, 1991-06-28

Blackland1991
Blackland
0 m away, 1991

same county and year: Whiteparish 1 June 1987 · Beckhampton 1 July 1987 · Little Cheverell 1 July 1987 · Bratton Castle 29 July 1987 · Westbury 2 August 1987 · Westbury 3 August 1987 · Bratton 4 August 1987 · Bratton Castle 4 August 1987 · Bratton Castle 6 August 1987 · Upton Scudamore 7 August 1987 · Westbury 7 August 1987 · Bratton Castle 8 August 1987 · Bratton Castle 8 August 1987 · Norton Bavant 8 August 1987 · Westbury 12 August 1987 · Bratton Castle 15 August 1987 · Little Cheverell 20 August 1987 · Little Cheverell 21 August 1987 · Winterbourne Stoke 21 August 1987 · Bratton Castle 22 August 1987 and 13 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: none
entity record: index/formations/UK19870905_B.json · row in index/manifest.jsonl
input digests: entity cba3263c0b3e · images afe2570b1c43 · texts 4f53cda18c2b · geo d863ece321a4