π°οΈ Route Geometry & DEM Elevation
Route line coordinates are compiled from verified Himalayan GPS trail tracks licensed through OpenStreetMap contributors and cross-checked against official maps published by the Survey Department of Nepal.
Elevation samples are extracted from the Copernicus GLO-30 Digital Elevation Model (DEM) at 30-meter spatial resolution. Key waypoint elevations (e.g., Namche Bazaar at 3,440 m, Thorong La at 5,416 m) are calibrated against official government survey bench marks and local conservation checkpoints.
β οΈ Himalayan GPS Variances & Safety Notice
Deep river gorges (such as the Dudh Koshi and Marshyangdi canyons) and steep glacial moraines cause GPS multi-path signal reflections. Daily walking hours and distances should be treated as reliable planning estimates rather than survey-grade navigational mandates.
Safety Advisory: This interactive route profile is designed for itinerary planning and acclimatization orientation. Trail conditions, seasonal snowpack, and bridge crossings can change rapidly. Never rely on web tools as your sole navigation instrument in the high Himalayas. Always carry offline navigation (maps.me / Garmin GPS) and paper topographic maps.