Sightelo

Explore what is visible

See beyond
the horizon.

Choose any place on Earth and discover where it may be seen.

1 Choose a place2 Explore the map
Select A or B, then click its new location.
Edit points

Understand distant views

A terrain visibility calculator for summits, monuments and landmarks

Sightelo estimates whether a point of interest can be seen from an observation point. It follows the terrain profile between both locations and accounts for Earth’s curvature and optional standard atmospheric refraction.

Check a mountain or summit

Compare the summit line of sight with ridges and terrain along the route, including long-distance views where curvature matters.

Check a monument or building

Enter the structure’s height to estimate how much remains visible above the terrain horizon.

Understand the result

Inspect the elevation profile, the minimum sight line and the stated confidence before drawing a conclusion.