Santa Ana Volcano

What the code says

The Grid Point Code for Santa Ana Volcano is #GLF8D-81PW3. It names a cell 2.56 m north to south and 3.32 m east to west, centred on 13°51'10.04"N, 89°37'48.03"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

Volcano in the Department of Santa Ana, El Salvador.

Code

#GLF8D-81PW3

With a check character

#GLF8D-81PW3*F

Short form

81PW3

Cell centre

13.852788, -89.630008

Cell size

2.56 m by 3.32 m

Region

Santa Ana Department

Country

El Salvador

How to give this address

On a sign, a form or a delivery note

The whole code, #GLF8D-81PW3. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Santa Ana Department

Santa Ana Volcano 81PW3: 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 Santa Ana Volcano. 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

#GLF8D-81PW3*F. 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 51.9 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. 8GLF8Metropolitan area40 km by 51.9 km
2. DGLF8DDistrict8 km by 10.4 km
3. 8GLF8D8Suburb1.6 km by 2.08 km
4. 1GLF8D81A few streets320 m by 415 m
5. PGLF8D81PBuilding64 m by 83 m
6. WGLF8D81PWEntrance12.8 m by 16.6 m
7. 3GLF8D81PW3Doorway2.56 m by 3.32 m

More in El Salvador

• San Salvador
• Joya de Cerén