Grid Point Code
Source on GitHub

Play

Lake Baikal

BuryatiaRussia

Grid Point Code for Lake Baikal
With a code
#N0XJ0-9G3HM
Said aloud
Lake Baikal 9G3HM

Open in the playground

What the code says

The Grid Point Code for Lake Baikal is #N0XJ0-9G3HM. It names a cell 2.56 m north to south and 2.04 m east to west, centred on 53°18'09.99"N, 108°00'16.98"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
Freshwater rift lake in southern Siberia, Russia; the greatest mountain lake in Asia and the most voluminous freshwater lake in the world
Code
#N0XJ0-9G3HM
With a check character
#N0XJ0-9G3HM*0
Short form
9G3HM
Cell centre
53.302775, 108.004716
Cell size
2.56 m by 2.04 m
Region
Buryatia
Country
Russia

How to give this address

On a sign, a form or a delivery note

The whole code, #N0XJ0-9G3HM. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Buryatia

Lake Baikal 9G3HM: 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 3.2 km east or west of Lake Baikal. 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

#N0XJ0-9G3HM*0. 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 31.9 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. N0XJMetropolitan area40 km by 31.9 km
  2. N0XJ0District8 km by 6.39 km
  3. N0XJ09Suburb1.6 km by 1.28 km
  4. N0XJ09GA few streets320 m by 255 m
  5. N0XJ09G3Building64 m by 51.1 m
  6. N0XJ09G3HEntrance12.8 m by 10.2 m
  7. N0XJ09G3HMDoorway2.56 m by 2.04 m

More in Russia

Place and region from Wikidata, described on Wikipedia.