cropcircles.photos

Alton Prior

UK19910719_C

19 July 1991·Alton Prior, Wiltshire

Casterley CampDurrington WallsMarden HengePewsey White HorseStonehengeYarnbury Castle5 km
Where it was reported. With no photograph to show, the plate is the place: Alton Prior, and every formation the archive holds around it. The dashed ring is how precise the fix is (±2,000 m at place confidence), drawn at its true size.

Reported 19 July 1991 at Alton Prior, Wiltshire. One archive recorded it, so nothing about it can be cross-checked.

The record

date
19 July 1991 (day precision)
place
Alton Prior
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
51.218925, -1.781582
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)

sitekindcreditbasiscaptionsizefilesource 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/1991/199107.html

Date

19 July 1991, to day precision. What a source records is the day a formation was found and reported.

reported by
cc: 19 July 1991
weekday
Friday, day 200 of the year, ISO week 29, summer
sun and moon
27.6 days after the June solstice; moon first quarter (59% lit), 7.3 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
51.218925, -1.781582 — place, ±2,000 m, by os_open_names, from the cc record
on a map
OpenStreetMap
siteplacecountycountrygrid refwhat3wordsfix
ccWiltshireEngland 51.218925, -1.781582 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 UK19910719_C
name Alton Prior
location
county Wiltshire
country England
date reported 1991-07-19
date precision day
crop
size
diameter (ft)
grid reference
what3words
map link
credits cropcirclecenter.com / Bertold Zugelder
source page https://www.cropcirclecenter.com/date/1991/199107.html
link to the entity singleton
decided by none on 2026-09-11
warnings no_formation_page
record cc/cc7a93fd13e3b…
raw record view: /formation/cc/cc7a93fd13e3b63cccaf35dadd8baef3554f324bd0d902a202cdf480d858747f 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.

diagramrotational symmetryelementsringsmirrorfill
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
Patcham 18 July 1991, Patcham
next
Marburg 20 July 1991, Marburg
previous in UK
Patcham 18 July 1991
next in UK
Callington 20 July 1991
same day
Damp (Damp) · Alton Barnes (Alton Barnes) · Alton Barnes (Alton Barnes) · Chilcomb Down (Chilcomb Down) · Lapworth (Lapworth) · South Wonston (South Wonston) · Wellingborough (Wellingborough)
within 7 days and 25 km
Alton Barnes 19 July 1991, 16.1 km away, 0 day(s) apart · Alton Barnes 19 July 1991, 16.1 km away, 0 day(s) apart · Alton Priors 18 July 1991, 16.2 km away, 1 day(s) apart · Milk Hill 23 July 1991, 18.3 km away, 4 day(s) apart · East Kennett 23 July 1991, 21.0 km away, 4 day(s) apart · Lockeridge 25 July 1991, 21.1 km away, 6 day(s) apart · Lockeridge 25 July 1991, 21.1 km away, 6 day(s) apart

In place

The nearest formations the archive can place.

same county and year
Alton Barnes April 1991 · Alton Barnes 18 April 1991 · Mardon Cowbag May 1991 · Yarnbury Castle 13 May 1991 · Marden 27 May 1991 · Whiteparish 27 May 1991 · Whiteparish 27 May 1991 · Whiteparish 27 May 1991 · Avebury Trusloe 9 June 1991 · Avebury Trusloe 14 June 1991 · Avebury Trusloe June 1991 · Beckhampton 18 June 1991 · Stonehenge 18 June 1991 · Beckhampton 20 June 1991 · Lockeridge 21 June 1991 · Avebury Trusloe 22 June 1991 · Blackland 28 June 1991 · Morgans Hill 28 June 1991 · Roundway Devizes 28 June 1991 · Lurkeley Hill 29 June 1991 and 67 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/UK19910719_C.json · row in index/manifest.jsonl
input digests
entity ad823feb95a4 · images afe2570b1c43 · texts 4f53cda18c2b · geo dde9de602db1