Google Maps allows you to easily check elevation metrics, making it easier to plan hikes and walks. You can find elevation data on Google Maps by searching for a location and selecting the Terrain ...

This map extract shows exact heights by a black dot with a number next to it. The number is the height above sea level in metres. The blue triangle represents a triangulation pillar; the networks ...

IceSat-2 is able to produce an elevation number to an accuracy of a little over 2cm. The AGU meeting was shown some of the first efforts to build a sea-ice thickness map for the Arctic.