OpenStreetMap
"UAV could map archeological sites in a fraction of the time currently required"
mapryan, 8 ఆగస్టు 2012 న English లో పోస్టు చేసారుOne 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
2012 ఆగస్టు 8 న 13:56 కి Pink Duck చేసిన వ్యాఖ్య
Presuming the cost is less than that of purchasing satellite imagery.
2012 ఆగస్టు 8 న 20:48 కి mapryan చేసిన వ్యాఖ్య
True
2013 జూలై 14 న 08:36 కి CloCkWeRX చేసిన వ్యాఖ్య
https://www.youtube.com/watch?v=n1E_CPxR3LA is probably quite interesting for you