Grid Point Code

Play

Dragon's Back

near Shek OSouthern DistrictHong Kong

With a code
#KHF65-P0JN9
Said aloud
Dragon's Back P0JN9

Open in the playground

What the code says

The Grid Point Code for Dragon's Back is #KHF65-P0JN9. It names a cell 2.56 m north to south and 3.17 m east to west, centred on 22°14'08.55"N, 114°14'37.33"E, 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
Ridge in southeastern Hong Kong Island, Hong Kong
Code
#KHF65-P0JN9
With a check character
#KHF65-P0JN9*K
Short form
P0JN9
Cell centre
22.235708, 114.243702
Cell size
2.56 m by 3.17 m
Region
Southern District
Country
Hong Kong

How to give this address

On a sign, a form or a delivery note

The whole code, #KHF65-P0JN9. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Southern District

Dragon's Back P0JN9: 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 4.9 km east or west of Dragon's Back. 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

#KHF65-P0JN9*K. 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 49.5 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. KHF6Metropolitan area40 km by 49.5 km
  2. KHF65District8 km by 9.89 km
  3. KHF65PSuburb1.6 km by 1.98 km
  4. KHF65P0A few streets320 m by 396 m
  5. KHF65P0JBuilding64 m by 79.1 m
  6. KHF65P0JNEntrance12.8 m by 15.8 m
  7. KHF65P0JN9Doorway2.56 m by 3.17 m

More in Hong Kong

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