Tunisia country guide and learning maps — 24 October 2026

OFFLINE REBUILD
python3 scripts/build-tunisia-maps.py (Python 3, Shapely 2).
Input: scripts/tunisia-map-source.geojson.
Outputs: public/tunisia-{governorates,cities,waters}.geojson,
src/lib/atlas/tn.ts and src/lib/atlas/tunisia-places.ts.
The snapshot retains complete feature extents. No geometry is clipped to the
opening camera or to Tunisia's international boundary.

24 GOVERNORATES
geoBoundaries gbOpen TUN ADM1, boundary ID TUN-ADM1-13205935,
source OpenStreetMap / Wambacher, represented year 2017, release 9469f09:
https://www.geoboundaries.org/api/current/gbOpen/TUN/ADM1/
https://github.com/wmgeolab/geoBoundaries/blob/9469f09/releaseData/gbOpen/TUN/ADM1/geoBoundaries-TUN-ADM1.geojson
Copyright OpenStreetMap contributors, Open Database Licence 1.0 (ODbL):
https://www.openstreetmap.org/copyright
https://opendatacommons.org/licenses/odbl/1-0/
The extract and derived governorate geometries are distributed under ODbL.
All 24 ISO-coded governorates are present, including Ariana, omitted by the
23-feature Natural Earth admin1 alternative. Names are normalised for display;
Kef is also called El Kef. Geometry is repaired and rounded to six decimals.
Settlement centres are retained, with a 1.2 km coastal generalisation allowance
in membership checks. The map is administrative reference, not surveyed borders.

MEDJERDA — ALGERIAN HEADWATERS TO MEDITERRANEAN MOUTH
OpenStreetMap geometry via WaterwayMap, retrieved 24 October 2026.
Source site reports OSM data from 2026-10-22T08:39:55Z.
https://waterwaymap.org/river/region/TN-Tunisia/
https://waterwaymap.org/river/region/DZ-Algeria/
Seven connected named sections, each at /river/<encoded name> <id>/geometry.geojson:
مجردة 000066752481
مجردة 000330555775
مجردة 002011685133
وادي مجردة 000330557854
وادي مجردة 001195182424
وادي مجردة 002011685133
وادي مجردة ⴰⵙⵉⴼ ⵏ ⵎⵊⵔⴷⴰ 002084890309
The shared endpoints join without invented straight connectors. The longest
mainstem from each section is used; a disconnected minor side arm is omitted.
The merged mainstem runs from approximately 7.939 E, 36.238 N in Algeria to
10.191 E, 37.012 N at the coast. Available mapped course rather than surveyed
source/length; no international-border truncation or tributary substitution.
Underlying OSM geometry is ODbL. WaterwayMap presentation is CC BY-SA 4.0.
This river extract and derivative geometry are distributed under ODbL.

LAKE AND SEASONAL SALINE BASINS
Complete OpenStreetMap polygons, retrieved through Nominatim on 24 October 2026:
Lake Ichkeul: relation 10224416
Chott el Djerid: relation 3969167
Chott el Gharsa: way 551247241
https://www.openstreetmap.org/relation/10224416
https://www.openstreetmap.org/relation/3969167
https://www.openstreetmap.org/way/551247241
Copyright OpenStreetMap contributors, ODbL 1.0. The distributed extract and
its derived inland-water geometry are ODbL. Chott polygons describe saline
basins, not permanent water. Gharsa retains the mapped Algerian extension.
Ichkeul's shoreline, salinity and water coverage vary seasonally.

WHOLE MEDITERRANEAN BASIN
Natural Earth 1:10m geography_marine_polys and land, public domain:
https://github.com/nvkelso/natural-earth-vector/tree/master/geojson
https://www.naturalearthdata.com/about/terms-of-use/
Union of Mediterranean Sea, Alboran Sea, Balearic Sea, Golfe du Lion,
Ligurian Sea, Tyrrhenian Sea, Adriatic Sea, Ionian Sea, Aegean Sea, Sea of
Crete, Gulf of Gabès, Gulf of Sidra and Strait of Gibraltar. Includes the
western approach, European subsidiary seas and the Levantine east, rather
than only Natural Earth's central feature labelled Mediterranean Sea.
Black Sea and Sea of Marmara are outside this target. Source land and the
more detailed Tunisian governorate land are subtracted; sea shading therefore
excludes islands and Tunisia's land. The adjusted Tunisian land edge is ODbL.
Marine outlines are hidden and zooming out is enabled independently of the
Tunisia opening view. It is a learning extent, not a maritime jurisdiction.

CITIES, SIGHTS AND READING
Thirty curated settlement centres: all 24 governorate centres plus Tabarka,
Aïn Draham, Hammamet, El Jem, Douz and Houmt Souk on Djerba.
Fifteen sights use representative pins; dispersed UNESCO properties do not
have a single entrance at their pin. No current opening/access guarantee.
Reading, quiz review and primary references: docs/tunisia-guide-review.md.