Hill River
AU19681118_A18 November 1968·Hill River·grass
Reported 18 November 1968 in grass at Hill River. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 18 November 1968 (day precision)
- place
- Hill River
Australia - crop
- grass
- size
- 5 ft (1.5 m) across
as written: 1,5 m | 5 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
- -30.656665, 117.712387
- how it was got
- county centroid
county, to within 120,000 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)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| cc | diagram | cropcirclecenter.com / Bertold Zugelder | site default | 575×415 32.4 KiB image/jpeg |
image ee8a66189fa0 | https://www.cropcirclecenter.com/date/1968/196811.html |
Date
18 November 1968, to day precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 18 November 1968
- weekday
- Monday, day 323 of the year, ISO week 47, autumn
- sun and moon
- 33.3 days before the December solstice; moon waning crescent (5% lit), 13.3 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
- -30.656665, 117.712387 — county, ±120,000 m, by county_centroid, from the cc record
- on a map
- OpenStreetMap
| site | place | county | country | grid ref | what3words | fix |
|---|---|---|---|---|---|---|
| cc | Western Australia | Australia | -30.656665, 117.712387 county / county_centroid |
Crop and size
- crop
- grass (cc: pasture grass)
- diameter
- 5 ft (1.5 m)
- size as written
- 1,5 m | 5 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 | AU19681118_A |
| name | Hill River |
| location | |
| county | Western Australia |
| country | Australia |
| date reported | 1968-11-18 |
| date precision | day |
| crop | pasture grass |
| size | 1,5 m | 5 ft |
| diameter (ft) | 5 |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1968/196811.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | no_formation_page |
| record | cc/2e19aa97e7ba6… raw record view: /formation/cc/2e19aa97e7ba6a9f7d2bada7671fb1213437b62502d3a4f09e15368183c97ff2 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. 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 ee8a6618 | ≈ 2-fold score 0.991 | 1 | 1 | 0.997 | 0.7124 |
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 ee8a6618— 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
- Gallupville 5 August 1968, Gallupville
- next
- AF19691333_A 1969
- previous in AU
- Heyfield 2 May 1968
- next in AU
- Tuckurimba January 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.
this formation has no coordinate at place confidence or better, so nothing can be called near it
- 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/AU19681118_A.json · row in index/manifest.jsonl
- input digests
- entity ba96372030de · images 930dc7142708 · texts 4f53cda18c2b · geo c20e6e264721