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Every climb on one map
All 21,803 published climbs — the UK, the US, Switzerland, Austria and France on one map (6,246 in this country) — coloured by their steepest 25 m. Click a dot for the climb’s page; the buttons below re-frame the map on another country. Coverage follows the open LiDAR record — an empty region usually means missing data, not missing hills.
Browse all 6246 French climbs — the full rankings →
· · frame: © OpenStreetMap contributors · topo tiles © OpenTopoMap (CC-BY-SA) · vector tiles OpenFreeMap
The interactive map could not load (the map library or the basemap tiles are unreachable). The survey’s own picture of the same climbs:
Coverage footprint — shaded ground is where the survey has screened the BD TOPO® road network against IGN’s LiDAR HD 0.5 m terrain model — the Alps so far; the other massifs and then the rest of France follow. Unshaded ground is where no open 1 m LiDAR was in the record when the survey ran: not “no hills”, not yet measurable. The footprint is computed from the survey’s own tile archive, never asserted.
Not surveyed yet — IGN has not yet flown its LiDAR HD survey over parts of France: in the Massif Central, Creuse (28.87 % covered), Haute-Vienne (59.71 %), Allier (92.47 %) and Puy-de-Dôme (92.92 %); in the south-west, Deux-Sèvres (74.86 %), Charente (89.29 %), Vienne (97.61 %) and Charente-Maritime (98.91 %); in the Jura, Ain (88.62 %) and Jura (89.06 %); in the Centre, Yvelines (91.14 %) and Loiret (96.60 %); in the north-east, Pas-de-Calais (97.05 %). Roads in those areas are refused rather than measured from coarser data. These gaps are accepted until 31 December 2026; pages for the roads there will follow once IGN publishes the flights.
Filled dots are climb pages. Dot colour: ● <15% ● 15–20% ● 20–25% ● 25–30% ● 30%+ — steepest 25 m window, the same figure the tables rank by. A grey-blue or blue dot is a page that earned its place another way (a long climb, a big total ascent, a listed or founding climb) — the same rule in every country.