Grattan
CA19671333_B1967·Grattan·grass
Reported 1967 in grass at Grattan. One archive recorded it, so nothing about it can be cross-checked.
The record
- date
- 1967 (year precision)
- place
- Grattan
Canada - crop
- grass
- size
- 13 ft (4.0 m) across
as written: 4 m | 13 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
- 45.466810, -77.032750
- 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)
| site | kind | credit | basis | caption | size | file | source page |
|---|---|---|---|---|---|---|---|
| cc | diagram | cropcirclecenter.com / Bertold Zugelder | site default | 575×415 45.4 KiB image/jpeg |
image 4f587dcd231f | https://www.cropcirclecenter.com/date/1967/1967unk.html |
Date
1967, to year precision. What a source records is the day a formation was found and reported.
- reported by
- cc: 1967
Place
What each source printed, and the coordinate derived from it. No source in this archive publishes a coordinate of its own.
- coordinate
- 45.466810, -77.032750 — place, ±2,000 m, by geonames, from the cc record
- on a map
- OpenStreetMap
| site | place | county | country | grid ref | what3words | fix |
|---|---|---|---|---|---|---|
| cc | Ontario | Canada | 45.466810, -77.032750 place / geonames |
Crop and size
- crop
- grass (cc: grass)
- diameter
- 13 ft (4.0 m)
- size as written
- 4 m | 13 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 | CA19671333_B |
| name | Grattan |
| location | |
| county | Ontario |
| country | Canada |
| date reported | 1967 |
| date precision | year |
| crop | grass |
| size | 4 m | 13 ft |
| diameter (ft) | 13 |
| grid reference | |
| what3words | |
| map link | |
| credits | cropcirclecenter.com / Bertold Zugelder |
| source page | https://www.cropcirclecenter.com/date/1967/1967unk.html |
| link to the entity | singleton decided by none on 2026-09-11 |
| warnings | unknown_month; no_formation_page |
| record | cc/07810fa03f4a6… raw record view: /formation/cc/07810fa03f4a684b9b7b991e9735368803d20127a0870ade769cf21370607c38 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 4f587dcd | ≈ 2-fold score 0.997 | 2 | 1 | 0.999 | 0.267 |
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 4f587dcd— 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
- Monroe 21 December 1966, Monroe
- next
- Euramo 27 January 1967, Euramo
- previous in CA
- CA19660533_A May 1966
- next in CA
- Kitchener April 1967
- same day
- Gull Lake (Gull Lake) · Gull Lake (Gull Lake) · Nitinat (Nitinat) · Willen (Willen) · Chandlers Ford (Chandlers Ford) · Whippingham (Whippingham) · Alamosa (Alamosa)
- 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.
Eganville
9.0 km away, 1971
Pembroke11 May 1969Pembroke
39.5 km away, 1969-05-11 Chapeau1 January 1969
Chapeau
49.5 km away, 1969-01-01 Chapeau12 May 1969
Chapeau
49.5 km away, 1969-05-12
LadysmithDecember 1970Ladysmith
59.9 km away, 1970-12 Pontiac1970s
Pontiac
71.3 km away, 1970
- 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/CA19671333_B.json · row in index/manifest.jsonl
- input digests
- entity 12179b56088c · images 98812805e71f · texts 4f53cda18c2b · geo e0e643278e85