Marreeba
AU19870733_AJuly 1987·Marreeba·grass
Reported July 1987 in grass at Marreeba. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- July 1987 (month precision)
- place
- Marreeba
Australia - crop
- grass
- size
- 12 ft (3.7 m) across
as written: 4 m | 12 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
- -23.751792, 149.304039
- 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 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/1987/198707.html |
Date
July 1987, to month precision. What a source records is the day a formation was found and reported.
- reported by
- cc: July 1987
Place
What each source printed, and the coordinate derived from it. No source in this archive publishes a coordinate of its own.
- coordinate
- -23.751792, 149.304039 — county, ±120,000 m, by county_centroid, from the cc record
- on a map
- OpenStreetMap
| site | place | county | country | grid ref | what3words | fix |
|---|---|---|---|---|---|---|
| cc | Queensland | Australia | -23.751792, 149.304039 county / county_centroid |
Crop and size
- crop
- grass (cc: grass)
- diameter
- 12 ft (3.7 m)
- size as written
- 4 m | 12 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 | AU19870733_A |
| name | Marreeba |
| location | |
| county | Queensland |
| country | Australia |
| date reported | 1987-07 |
| date precision | month |
| crop | grass |
| size | 4 m | 12 ft |
| diameter (ft) | 12 |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1987/198707.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | unknown_day; no_formation_page |
| record | cc/9b451766085b4… raw record view: /formation/cc/9b451766085b4cd31950fa8e360c6d71b7c406736c2b4eb4500f27c09eccf874 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
- Kimpton 29 June 1987, Kimpton
- next
- Chilcomb 2 July 1987, Chilcomb
- previous in AU
- Euramo 21 February 1987
- next in AU
- Jamestown 25 July 1989
- same day
- Beckhampton (Beckhampton) · Little Cheverell (Little Cheverell) · Thruxton (Thruxton)
- 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/AU19870733_A.json · row in index/manifest.jsonl
- input digests
- entity 7b5a225ee473 · images afe2570b1c43 · texts 4f53cda18c2b · geo 0371d768167e