Silbury Hill

UK19950718_C

18 July 1995·Silbury Hill, Wiltshire

Where it was reported. With no photograph to show, the plate is the place: Silbury Hill, and every formation the archive holds around it. 63 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 18 July 1995 at Silbury Hill, Wiltshire. One archive recorded it, so nothing about it can be cross-checked.

The record

date: 18 July 1995 (day precision)
place: Silbury Hill
Wiltshire
England
crop: not recorded by any source
size: 98 ft (29.9 m) across
as written: 30 m | 98 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)

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/1995/199507.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/1995/199507.html

Date

18 July 1995, to day precision. What a source records is the day a formation was found and reported.

reported by: cc: 18 July 1995
weekday: Tuesday, day 199 of the year, ISO week 29, summer
sun and moon: 26.6 days after the June solstice; moon last quarter (60% lit), 6.0 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

site

place

county

country

grid ref

what3words

fix

Wiltshire

England

51.415755, -1.857405 place / os_open_names

Crop and size

crop: not recorded (cc: —)
diameter: 98 ft (29.9 m)
size as written: 30 m | 98 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 UK19950718_C

name Silbury Hill

location

county Wiltshire

country England

date reported 1995-07-18

date precision day

crop

size 30 m | 98 ft

diameter (ft) 98

grid reference

what3words

map link

credits cropcirclecenter.com / Bertold Zugelder

source page https://www.cropcirclecenter.com/date/1995/199507.html

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

warnings no_formation_page

record cc/262d774fd8708…
raw record view: /formation/cc/262d774fd87085b6e0b9263c473b50bbbfc1f3457a80887341910754899eea37 in the preview app

field	cc cropcirclecenter.com
id / slug	UK19950718_C
name	Silbury Hill
location
county	Wiltshire
country	England
date reported	1995-07-18
date precision	day
crop
size	30 m \| 98 ft
diameter (ft)	98
grid reference
what3words
map link
credits	cropcirclecenter.com / Bertold Zugelder
source page	https://www.cropcirclecenter.com/date/1995/199507.html
link to the entity	singleton decided by none on 2026-09-11
warnings	no_formation_page
record	cc/262d774fd8708… raw record view: `/formation/cc/262d774fd87085b6e0b9263c473b50bbbfc1f3457a80887341910754899eea37` 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: Andover 17 July 1995, Andover
next: Zichovic 19 July 1995, Zichovic
previous in UK: Andover 17 July 1995
next in UK: Roundway Hill 20 July 1995
same day: Susice (Susice) · Hatch (Hatch) · Pepperbox Hill (Pepperbox Hill)
within 7 days and 25 km: Avebury 24 July 1995, 1.4 km away, 6 day(s) apart · Winterbourne Bassett 23 July 1995, 6.3 km away, 5 day(s) apart · Woodborough Hill 24 July 1995, 8.1 km away, 6 day(s) apart · Roundway Devizes 21 July 1995, 10.1 km away, 3 day(s) apart · Roundway Devizes 25 July 1995, 10.1 km away, 7 day(s) apart · Market Lavington 21 July 1995, 16.7 km away, 3 day(s) apart · Market Lavington 21 July 1995, 16.7 km away, 3 day(s) apart · West Lavington 21 July 1995, 18.2 km away, 3 day(s) apart

In place

The nearest formations the archive can place.

Silbury Hill15 July 1988
Silbury Hill
0 m away, 1988-07-15

Silbury Hill26 July 1988
Silbury Hill
0 m away, 1988-07-26

Silbury Hill30 July 1988
Silbury Hill
0 m away, 1988-07-30

Silbury Hill10 May 1989
Silbury Hill
0 m away, 1989-05-10

Silbury Hill23 June 1989
Silbury Hill
0 m away, 1989-06-23

Silbury Hill28 June 1989
Silbury Hill
0 m away, 1989-06-28

same county and year: Warminster 22 April 1995 · Lurkeley Hill 8 May 1995 · Alton Barnes 12 May 1995 · Alton Priors 13 May 1995 · Avebury Trusloe 29 May 1995 · Avebury 2 June 1995 · Bratton Castle 5 June 1995 · Telegraph Hill 12 June 1995 · Telegraph Hill 14 June 1995 · Silbury Hill 23 June 1995 · Silbury Hill 23 June 1995 · West Stowell 25 June 1995 · Pewsey 1 July 1995 · Pewsey 7 July 1995 · Pepperbox Hill 18 July 1995 · Broad Street 21 July 1995 · Market Lavington 21 July 1995 · Market Lavington 21 July 1995 · Roundway Devizes 21 July 1995 · West Lavington 21 July 1995 and 19 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/UK19950718_C.json · row in index/manifest.jsonl
input digests: entity bba5b1e39087 · images afe2570b1c43 · texts 4f53cda18c2b · geo 4e0d4826ac35