Mont Blanc from Lyon
A roughly 158 km sight line where distant relief, curvature and refraction all matter.
See Mont Blanc from LyonReady-to-run analyses
Terrain visibility analysis examples
Sightelo analyses whether a summit, monument or landform is theoretically visible from a given place, taking terrain, Earth curvature and atmospheric refraction into account.
Mont Blanc from Annecy
A 57.6 km Alpine route where nearby terrain blocks the selected city-centre sight line.
See Mont Blanc from AnnecyMont Blanc from Geneva
A 69.9 km southeast sight line from the lakeside at Parc de la Perle du Lac.
See Mont Blanc from GenevaMont Ventoux from Avignon
A 45 km view from the Rhône plain towards the final slopes of Mont Ventoux.
See Mont Ventoux from AvignonPuy de Dôme from Clermont-Ferrand
A short volcanic-landscape example dominated by local relief.
See Puy de Dôme from Clermont-FerrandMont-Saint-Michel from Avranches
A coastal monument across low terrain where structure height is essential.
See Mont-Saint-Michel from AvranchesMount Fuji from Tokyo
A roughly 100 km view towards Japan's 3,776 m volcanic summit.
See Mount Fuji from TokyoMount Fuji from Yokohama
An 83.2 km westward sight line from central Yokohama towards Japan's 3,776 m volcanic summit.
See Mount Fuji from YokohamaKilimanjaro from Arusha
An East African analysis towards an isolated 5,895 m summit.
See Kilimanjaro from ArushaMount Everest from Kathmandu
A Himalayan example where intervening mountain ranges are decisive.
See Mount Everest from KathmanduStatue of Liberty from Brooklyn
A harbour example illustrating ground elevation versus monument height.
See the Statue of Liberty from BrooklynMount Rainier from Seattle
A 94 km view across the Puget Sound lowlands towards the Cascade volcano.
See Mount Rainier from SeattleMount Baker from Vancouver
A 111 km cross-border view across the Fraser lowland towards the North Cascades.
See Mount Baker from VancouverMount Hood from Portland
A 78.5 km east-southeast view from Downtown Portland towards the Cascade volcano.
See Mount Hood from PortlandTeide from Las Palmas de Gran Canaria
A 118.9 km Atlantic sight line from La Cícer beach, with the summit above the modelled horizon.
See Teide from Las Palmas de Gran CanariaMount Etna from Malta
A 210 km Mediterranean case where the geometric horizon becomes decisive.
See Mount Etna from MaltaCanigou from Marseille
A demanding 253 km sight line influenced by curvature and atmospheric refraction.
See Canigou from MarseilleDenali from Anchorage
A 214 km Alaskan view towards North America's highest summit.
See Denali from AnchorageMonviso from Turin
A 64.9 km sight line from Piazza Castello to the Monviso summit.
See Monviso from TurinMonte Rosa from Milan
A 115.7 km sight line from Piazza del Duomo to Monte Rosa's Dufourspitze.
See Monte Rosa from MilanMulhacén from Granada
A 28.8 km sight line from Plaza Nueva, blocked by nearby terrain.
See Mulhacén from GranadaZugspitze from Munich
A 91.1 km sight line from near Marienplatz to the Zugspitze summit.
See Zugspitze from MunichBrocken from Hanover
An 87.8 km sight line from Kröpcke square, blocked by nearby terrain.
See Brocken from HanoverWhere can a famous mountain be seen?
Explore 100 km theoretical visibility maps for summits in France, Europe and around the world.
Explore mountain visibility mapsInterpret with care
Terrain data, elevation uncertainty and atmospheric conditions can change a marginal result. Read how the calculation works before drawing conclusions from a long-distance example.