Gagnoa

What the code says

The Grid Point Code for Gagnoa is #H4LF1-0P15H. It names a cell 2.56 m north to south and 3.40 m east to west, centred on 6°07'54.92"N, 5°57'02.17"W, and it turns back into that cell on any phone or computer by arithmetic alone: no network, no account, no lookup table.

The point used is the one GeoNames records for Gagnoa, near its centre.

Code

#H4LF1-0P15H

With a check character

#H4LF1-0P15H*7

Short form

0P15H

Cell centre

6.131923, -5.950602

Cell size

2.56 m by 3.40 m

Region

Goh-Djiboua

Country

Côte d'Ivoire

Population

277,044

How to give this address

On a sign, a form or a delivery note

The whole code, #H4LF1-0P15H. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Goh-Djiboua

Gagnoa 0P15H: 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 5.3 km east or west of Gagnoa. 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

#H4LF1-0P15H*7. 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 53.1 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. FH4LFMetropolitan area40 km by 53.1 km
2. 1H4LF1District8 km by 10.6 km
3. 0H4LF10Suburb1.6 km by 2.13 km
4. PH4LF10PA few streets320 m by 425 m
5. 1H4LF10P1Building64 m by 85 m
6. 5H4LF10P15Entrance12.8 m by 17 m
7. HH4LF10P15HDoorway2.56 m by 3.4 m

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