Caves of Han-sur-Lesse

What the code says

The Grid Point Code for Caves of Han-sur-Lesse is #PXF4N-0RFC2. It names a cell 2.56 m north to south and 2.19 m east to west, centred on 50°07'30.02"N, 5°11'22.03"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

Caves near the village of Han-sur-Lesse, Belgium

Code

#PXF4N-0RFC2

With a check character

#PXF4N-0RFC2*0

Short form

0RFC2

Cell centre

50.125006, 5.189453

Cell size

2.56 m by 2.19 m

Region

Walloon Region

Country

Belgium

How to give this address

On a sign, a form or a delivery note

The whole code, #PXF4N-0RFC2. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Walloon Region

Caves of Han-sur-Lesse 0RFC2: 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 3.4 km east or west of Caves of Han-sur-Lesse. 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

#PXF4N-0RFC2*0. 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 34.3 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. 4PXF4Metropolitan area40 km by 34.3 km
2. NPXF4NDistrict8 km by 6.85 km
3. 0PXF4N0Suburb1.6 km by 1.37 km
4. RPXF4N0RA few streets320 m by 274 m
5. FPXF4N0RFBuilding64 m by 54.8 m
6. CPXF4N0RFCEntrance12.8 m by 11 m
7. 2PXF4N0RFC2Doorway2.56 m by 2.19 m

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