cropcircles.photos

Ibiuna

BR19690617_A

17 June 1969·Ibiuna·grass

500 km
Where it was reported. With no photograph to show, the plate is the place: Ibiuna, and every formation the archive holds around it. 1 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 17 June 1969 in grass at Ibiuna. One archive recorded it, so nothing about it can be cross-checked.

The record

date
17 June 1969 (day precision)
place
Ibiuna
Brazil
crop
grass
size
26 ft (7.9 m) across
as written: 8 m | 26 ft
recorded by
cc
images
1 · 1 diagram
writing
nothing was written about this formation on any source
8 m across100 m

Also called

Nothing else. No other name or place string appears on any source record for this formation.

Where exactly

coordinate
-23.656390, -47.222500
how it was got
geonames
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
same file as tt
diagram
no diagram published by cropcirclecenter (“no diagram” tile)
cropcirclecenter.com / Bertold Zugelder site default 575×415
66.1 KiB image/jpeg
image 3461dff5df5d https://www.cropcirclecenter.com/date/1969/196906.html

Date

17 June 1969, to day precision. What a source records is the day a formation was found and reported.

reported by
cc: 17 June 1969
weekday
Tuesday, day 168 of the year, ISO week 25, summer
sun and moon
4.1 days before the June solstice; moon waxing crescent (6% lit), 12.3 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
-23.656390, -47.222500 — place, ±2,000 m, by geonames, from the cc record
on a map
OpenStreetMap
siteplacecountycountrygrid refwhat3wordsfix
ccSao PauloBrazil -23.656390, -47.222500 place / geonames

Crop and size

crop
grass (cc: grass)
diameter
26 ft (7.9 m)
size as written
8 m | 26 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 BR19690617_A
name Ibiuna
location
county Sao Paulo
country Brazil
date reported 1969-06-17
date precision day
crop grass
size 8 m | 26 ft
diameter (ft) 26
grid reference
what3words
map link
credits cropcirclecenter.com / Bertold Zugelder
source page https://www.cropcirclecenter.com/date/1969/196906.html
link to the entity singleton
decided by none on 2026-09-11
warnings no_formation_page
record cc/1163be2f5e287…
raw record view: /formation/cc/1163be2f5e287857b96378d092ac27667425c9d2a9b75aba8151bd7f3668a77f 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 3461dff5 (placeholder: digest) ≈ 2-fold score 0.906 4 3 0.853 0.3434

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 3461dff5— 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
Kenora 2 June 1969, Kenora
next
AU19690623_A 23 June 1969
previous in BR
none
next in BR
Ibiuna 26 June 1969
same day
no other formation is dated this day
within 7 days and 25 km
none, or this formation has no coordinate at place confidence or better

In place

The nearest formations the archive can place.

same county and year
none

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/BR19690617_A.json · row in index/manifest.jsonl
input digests
entity ed64ed2172ca · images cde4d9495e39 · texts 4f53cda18c2b · geo b4511d91daf0