Arikok National Park

What the code says

The Grid Point Code for Arikok National Park is #GJJ48-FXX5H. It names a cell 2.56 m north to south and 3.34 m east to west, centred on 12°29'55.67"N, 69°55'35.54"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

National park in Aruba

Code

#GJJ48-FXX5H

With a check character

#GJJ48-FXX5H*P

Short form

FXX5H

Cell centre

12.498797, -69.926538

Cell size

2.56 m by 3.34 m

Country

Aruba

How to give this address

On a sign, a form or a delivery note

The whole code, #GJJ48-FXX5H. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Aruba

Arikok National Park FXX5H: 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 5.2 km east or west of Arikok National Park. 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

#GJJ48-FXX5H*P. 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 52.2 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. 4GJJ4Metropolitan area40 km by 52.2 km
2. 8GJJ48District8 km by 10.4 km
3. FGJJ48FSuburb1.6 km by 2.09 km
4. XGJJ48FXA few streets320 m by 417 m
5. XGJJ48FXXBuilding64 m by 83.5 m
6. 5GJJ48FXX5Entrance12.8 m by 16.7 m
7. HGJJ48FXX5HDoorway2.56 m by 3.34 m

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