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How the crowd draws

26 drawings of its land border and 55 drawings of its coast, from memory on Borderline’s France map, 25 September 2026 to 26 October 2026.

Draw Côtes-d'Armor

In numbers

Last updated on 27 October 2026
The real oneThe crowd’s
Area6,961 km²2,688 sq mi6,284 km²2,426 sq mi9.7% smaller
Outline680 km423 mi555 km345 mi18.5% shorter
Centre2.86° W, 48.44° N2.9° W, 48.4° N2.81° W, 48.42° N2.8° W, 48.4° N5 km south-east3 mi south-east
Westernmost3.66° W, 48.65° N3.7° W, 48.7° N3.65° W, 48.66° N3.6° W, 48.7° N1 km short1 mi short
Easternmost1.91° W, 48.51° N1.9° W, 48.5° N1.95° W, 48.52° N2.0° W, 48.5° N3 km short2 mi short
Southernmost2.66° W, 48.03° N2.7° W, 48.0° N2.63° W, 48.05° N2.6° W, 48.1° N2 km short1 mi short
Northernmost3.07° W, 48.88° N3.1° W, 48.9° N3.30° W, 48.79° N3.3° W, 48.8° N10 km short6 mi short

Near the land border, 60% of the crowd’s lines run inside Côtes-d'Armor. Near the coast, 54% run inland.

Borders and coast

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 Observatoire national de la mer et du littoral (coasts, 2015 to 2017), 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.

Côtes-d'Armor’s coast: 348 km in the game, 483 km officially.

3 neighbours
Border withIn the gameThe crowd’s
Morbihan175 km in the game163 km the crowd’s6.9% shorter
Ille-et-Vilaine113 km in the game109 km the crowd’s3.5% shorter
Finistère90 km in the game83 km the crowd’s7.8% shorter
The coast348 km in the game483 km officially229 km the crowd’s34.2% shorter

How it is measured

The crowd’s Côtes-d'Armor: every few km along the real line, each drawing’s nearest point, inside Côtes-d'Armor 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 81 drawings that scored 10 or more on Borderline’s France 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 Côtes-d'Armor yourself and add your line to the next update.