AI-ASSISTED · EDITOR-REVIEWED

Theme brief

The theme references Borges’s parable of a map made at the same scale as the empire. Use extreme resolution, endless zoom or deliberate overload to question what detail is useful and where a representation stops behaving like a map.

Official prompt
“A map so detailed it becomes the territory.”
30DayMapChallenge 2026

02

WAYS IN

Four map ideas

01
Build a seamless zoom from country to individual roof tile.
02
Map every mapped object in one city block, including tiny street furniture.
03
Contrast a hyper-detailed basemap with a single sparse annotation.
04
Create a one-to-one field map by tracing a small place at life size.

03

IN THE DIRECTORY

Recommended tools

Mapbox GL JS

Zoom-dependent styles can reveal new detail continuously across scales.

Freemium · View details

QGIS

Handles highly detailed source layers and precise print-scale experiments.

Open source · View details

OSM Buildings

Turns detailed OpenStreetMap buildings into an immediate 3D territory.

Freemium · View details

Tippecanoe

Builds efficient vector tiles from very large feature collections.

Open source · View details

04

START WITH A CLEAR LICENSE

Data sources

OpenStreetMap full feature data

Planet files and regional extracts include rich, community-maintained detail.

ODbL 1.0 · attribution required PDOK Netherlands aerial imagery

Very high-resolution national imagery services and downloads.

Open data · check layer metadata swissIMAGE orthophotos

High-resolution orthophotos with source acknowledgment guidance.

Swiss open government data terms

Licenses are a planning aid, not legal advice. Check the source record and version you actually download; terms can vary within a catalog.

05

BEFORE YOU EXPORT

Cartography check

Use progressive disclosure. The point is extraordinary detail, but the viewer still needs a path through it.

06

COMMUNITY MAPS

Selected work

Selections begin after this theme closes.

First participate officially by posting publicly with #30DayMapChallenge. You can then suggest that original post for our independent MapTools picks. We link to the source, credit every author and use images only with permission.

Suggest for MapTools picks