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How the crowd draws

379 drawings of its land border, from memory on Borderline’s World map, 21 September 2026 to 26 October 2026.

Draw Western Sahara

In numbers

Last updated on 27 October 2026
The real oneThe crowd’s
Area91,000 km²35,000 sq mi61,000 km²24,000 sq mi32.4% smaller
Outline2,973 km1,847 mi2,803 km1,742 mi5.7% shorter
Centre12.27° W, 24.21° N12.3° W, 24.2° N12.06° W, 24.35° N12.1° W, 24.4° N26 km north-east16 mi north-east
Westernmost17.10° W, 20.85° N17.1° W, 20.9° N17.16° W, 20.99° N17.2° W, 21.0° N7 km beyond4 mi beyond
Easternmost8.68° W, 27.10° N8.7° W, 27.1° N8.85° W, 27.18° N8.8° W, 27.2° N17 km short10 mi short
Southernmost17.05° W, 20.81° N17.0° W, 20.8° N17.08° W, 20.75° N17.1° W, 20.7° N7 km beyond4 mi beyond
Northernmost8.75° W, 27.66° N8.7° W, 27.7° N8.85° W, 27.18° N8.8° W, 27.2° N53 km short33 mi short

Near the land border, 51% of the crowd’s lines run inside Western Sahara.

Borders

Why two lengths?

A line’s length depends on how closely it is drawn. The game’s lines are simplified: they keep a point every few kilometres and cut across small bends. The official lengths, from the CIA World Factbook, are measured on other lines. A border measured on a finer line, following every bend of its rivers and ridges, comes out longer.

Coasts differ most, and either way. Some official coastlines follow every inlet and island (Canada’s 202,080 km); others are smoothed on purpose, crossing bays and sounds (the United States’ 19,924 km), and can come out shorter than the game’s.

Players draw against the game’s line and are scored against it, so the crowd’s length is compared with the game’s, both measured the same way. Set against an official length measured another way, the comparison would say more about the two methods than about the crowd.

Western Sahara and Mauritania: 1,533 km in the game, 1,564 km officially.

3 neighbours
Border withIn the gameThe crowd’s
Mauritania1,533 km in the game1,564 km officially1,412 km the crowd’s7.9% shorter
Morocco1,332 km in the game1,305 km the crowd’s2.0% shorter
Algeria42 km in the game41 km officially0 km the crowd’s100.0% shorter

How it is measured

The crowd’s Western Sahara: every few km along the real line, each drawing’s nearest point, inside Western Sahara or outside it; the median over a short stretch is where the crowd puts the line there, and the real outline moved by it is the crowd’s. Where the move folds a narrow inlet over itself, the loop is cut.

The 379 drawings that scored 10 or more on Borderline’s World map, scribbles left out, the real line the game’s own. Area true to scale; the outline copies the real line’s detail, so its length changes only where the shape moves or a loop is cut.

Draw Western Sahara yourself and add your line to the next update.