OpenStreetMap
"UAV could map archeological sites in a fraction of the time currently required"
Pleatst troch mapryan op 8 augustus 2012 yn it 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
Discussion
Reäksje fan Pink Duck op 8 augustus 2012 om 13.56 oere
Presuming the cost is less than that of purchasing satellite imagery.
Reäksje fan mapryan op 8 augustus 2012 om 20.48 oere
True
Reäksje fan CloCkWeRX op 14 july 2013 om 08.36 oere
https://www.youtube.com/watch?v=n1E_CPxR3LA is probably quite interesting for you