Grid Point Code
Source on GitHub

Play

Horseshoe Falls

near Niagara FallsOntarioCanada

Grid Point Code for Horseshoe Falls
With a code
#G3LXK-8FKXW
Said aloud
Horseshoe Falls 8FKXW

Open in the playground

What the code says

The Grid Point Code for Horseshoe Falls is #G3LXK-8FKXW. It names a cell 2.56 m north to south and 2.50 m east to west, centred on 43°04'38.28"N, 79°04'32.27"W, and it turns back into that cell on any phone or computer by arithmetic alone: no network, no account, no lookup table.

What it is
Waterfall of the Niagara Falls
Code
#G3LXK-8FKXW
With a check character
#G3LXK-8FKXW*R
Short form
8FKXW
Cell centre
43.077300, -79.075630
Cell size
2.56 m by 2.50 m
Region
Ontario
Country
Canada

How to give this address

On a sign, a form or a delivery note

The whole code, #G3LXK-8FKXW. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Ontario

Horseshoe Falls 8FKXW: a name both people know, then the last five characters. They give back the exact code for anywhere within 4.0 km north or south and 3.9 km east or west of Horseshoe Falls. Further away the same five name somewhere else, which is why the whole code is what goes on a sign.

Copied by hand, or read over a phone

#G3LXK-8FKXW*R. The character on the end catches any single mistyped symbol and any two neighbours swapped.

As a link or a square code

Open it on the map, move to the exact door, and add directions if the code needs help: "blue gate, second floor". The link and the square code carry them. Nothing is kept on this site.

From the city to the door

The first four characters name a cell about 40 km by 39 km here. Each one after that picks one of 25 inside the last, so the whole ten name a spot about the size of a doorway.

  1. G3LXMetropolitan area40 km by 39 km
  2. G3LXKDistrict8 km by 7.81 km
  3. G3LXK8Suburb1.6 km by 1.56 km
  4. G3LXK8FA few streets320 m by 312 m
  5. G3LXK8FKBuilding64 m by 62.4 m
  6. G3LXK8FKXEntrance12.8 m by 12.5 m
  7. G3LXK8FKXWDoorway2.56 m by 2.5 m

More in Canada

Place and region from Wikidata, described on Wikipedia; nearby town from GeoNames, under CC BY 4.0.