Souq al-Zal

What the code says

The Grid Point Code for Souq al-Zal is #JGJLD-25M1P. It names a cell 2.56 m north to south and 3.11 m east to west, centred on 24°37'45.02"N, 46°42'44.04"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

Traditional souq in ad-Dirah, Riyadh, Saudi Arabia

Code

#JGJLD-25M1P

With a check character

#JGJLD-25M1P*T

Short form

25M1P

Cell centre

24.629172, 46.712233

Cell size

2.56 m by 3.11 m

City

Riyadh

Region

Riyadh Region

Country

Saudi Arabia

How to give this address

On a sign, a form or a delivery note

The whole code, #JGJLD-25M1P. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Riyadh

Souq al-Zal 25M1P: 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 4.9 km east or west of Souq al-Zal. 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

#JGJLD-25M1P*T. 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 48.6 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. LJGJLMetropolitan area40 km by 48.6 km
2. DJGJLDDistrict8 km by 9.71 km
3. 2JGJLD2Suburb1.6 km by 1.94 km
4. 5JGJLD25A few streets320 m by 389 m
5. MJGJLD25MBuilding64 m by 77.7 m
6. 1JGJLD25M1Entrance12.8 m by 15.5 m
7. PJGJLD25M1PDoorway2.56 m by 3.11 m

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