The tiles contain elevation data encoded into RGB color model
Find out more about the dataset here.
Zoom in to preview the details of this tileset. Provided area is marked with a rectangle.
The tiles are generated on zoom levels 0-10.
Elevation in meters can be calculated as follows:
height = -10000 + ((R * 256 * 256 + G * 256 + B) * 0.1)
The viewer above shows a "hillshading" view of the encoded DEM.