http://youtu.be/NuZUSe87miY

A video crew follows senseFly's (
http://www.sensefly.com )
team of engineers marking a historic milestone in proof of surveying techniques,
using eBee minidrones to map the epic Matterhorn and construct a 3D model of
"the most beautiful mountain".

The mission involved the coordination of several teams with multiple eBee drones
taking over 2200 images in 11 flights, all within a few hours of a sunny alpine
morning. The results are stunning: a high-definition 3D point-cloud made of 300
million points covering an area of over 2800 hectares with an average resolution
of 20 cm. A special thanks to our partners Pix4D (
http://www.pix4d.com ) for
the creation of the 3D model, Drone Adventures (
http://www.droneadventures.org ) for mission coordination and MapBox (
http://www.mapbox.com ) for
online visualisation.

SenseFly is a Parrot company ( http://parrot.com/ )

They had the climb the Matterhorn and let the drones slowly
descend across the face because the drones ere not powerful enough to climb up
the Matterhorn.

http://edition.cnn.com/2013/11/28/tech/innovation/all-i-want-christmas-robot/index.html?hpt=hp_c4