Mount Damavand

What the code says

The Grid Point Code for Mount Damavand is #J53R2-5XH7M. It names a cell 2.56 m north to south and 2.77 m east to west, centred on 35°57'18.96"N, 52°06'32.95"E, 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

Potentially active stratovolcano and the highest peak in Iran

Code

#J53R2-5XH7M

With a check character

#J53R2-5XH7M*L

Short form

5XH7M

Cell centre

35.955268, 52.109153

Cell size

2.56 m by 2.77 m

Region

Mazandaran Province

Country

Iran

How to give this address

On a sign, a form or a delivery note

The whole code, #J53R2-5XH7M. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Mazandaran Province

Mount Damavand 5XH7M: 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 4.3 km east or west of Mount Damavand. 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

#J53R2-5XH7M*L. 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 43.3 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. RJ53RMetropolitan area40 km by 43.3 km
2. 2J53R2District8 km by 8.65 km
3. 5J53R25Suburb1.6 km by 1.73 km
4. XJ53R25XA few streets320 m by 346 m
5. HJ53R25XHBuilding64 m by 69.2 m
6. 7J53R25XH7Entrance12.8 m by 13.8 m
7. MJ53R25XH7MDoorway2.56 m by 2.77 m

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