OpenStreetMap
"UAV could map archeological sites in a fraction of the time currently required"
Postet gant mapryan da 8 August 2012 e English.One of these could be really useful for all those areas with no or poor satellite imagery coverage http://www.gizmag.com/suave-archeological-aerial-mapping/23626/?utm_source=Gizmag+Subscribers&utm_campaign=7f35e162ad-UA-2235360-4&utm_medium=email
Kaozeadenn
Evezhiadenn a-berzh Pink Duck d'an 8 August 2012 da 13:56
Presuming the cost is less than that of purchasing satellite imagery.
Evezhiadenn a-berzh mapryan d'an 8 August 2012 da 20:48
True
Evezhiadenn a-berzh CloCkWeRX d'an 14 July 2013 da 08:36
https://www.youtube.com/watch?v=n1E_CPxR3LA is probably quite interesting for you