Irazú Volcano

What the code says

The Grid Point Code for Irazú Volcano is #GK4HK-FW208. It names a cell 2.56 m north to south and 3.37 m east to west, centred on 9°58'44.99"N, 83°51'08.99"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

Mountain in Costa Rica

Code

#GK4HK-FW208

With a check character

#GK4HK-FW208*M

Short form

FW208

Cell centre

9.979165, -83.852498

Cell size

2.56 m by 3.37 m

Region

Cartago Province

Country

Costa Rica

How to give this address

On a sign, a form or a delivery note

The whole code, #GK4HK-FW208. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Cartago Province

Irazú Volcano FW208: 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 Irazú 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

#GK4HK-FW208*M. 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 52.6 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. HGK4HMetropolitan area40 km by 52.6 km
2. KGK4HKDistrict8 km by 10.5 km
3. FGK4HKFSuburb1.6 km by 2.1 km
4. WGK4HKFWA few streets320 m by 421 m
5. 2GK4HKFW2Building64 m by 84.2 m
6. 0GK4HKFW20Entrance12.8 m by 16.8 m
7. 8GK4HKFW208Doorway2.56 m by 3.37 m

More in Costa Rica

• San José Central Market
• San José
• Arenal Volcano
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