Castillo de San Pedro de la Roca

What the code says

The Grid Point Code for Castillo de San Pedro de la Roca is #GG6WC-67C2G. It names a cell 2.56 m north to south and 3.21 m east to west, centred on 19°58'07.36"N, 75°52'13.10"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

Fortress in Santiago de Cuba

Code

#GG6WC-67C2G

With a check character

#GG6WC-67C2G*N

Short form

67C2G

Cell centre

19.968710, -75.870305

Cell size

2.56 m by 3.21 m

Region

Santiago de Cuba Province

Country

Cuba

How to give this address

On a sign, a form or a delivery note

The whole code, #GG6WC-67C2G. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Santiago de Cuba Province

Castillo de San Pedro de la Roca 67C2G: 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 5.0 km east or west of Castillo de San Pedro de la Roca. 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

#GG6WC-67C2G*N. 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 50.2 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. WGG6WMetropolitan area40 km by 50.2 km
2. CGG6WCDistrict8 km by 10 km
3. 6GG6WC6Suburb1.6 km by 2.01 km
4. 7GG6WC67A few streets320 m by 402 m
5. CGG6WC67CBuilding64 m by 80.4 m
6. 2GG6WC67C2Entrance12.8 m by 16.1 m
7. GGG6WC67C2GDoorway2.56 m by 3.21 m

More in Cuba

• Havana
• Santiago de Cuba
• Camagüey
• Holguín
• Guantánamo
• Santa Clara
• Viñales Valley