OpenStreetMap
"UAV could map archeological sites in a fraction of the time currently required"
mapryan ਵੱਲੋਂ 8 ਅਗਸਤ 2012 ਨੂੰ English ਵਿੱਚ ਜੋੜਿਆ ਗਿਆ।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
ਗੱਲ-ਬਾਤ
Pink Duck ਵੱਲੋਂ 13:56 ਤੇ 8 ਅਗਸਤ 2012 'ਤੇ ਟਿੱਪਣੀ
Presuming the cost is less than that of purchasing satellite imagery.
mapryan ਵੱਲੋਂ 20:48 ਤੇ 8 ਅਗਸਤ 2012 'ਤੇ ਟਿੱਪਣੀ
True
CloCkWeRX ਵੱਲੋਂ 08:36 ਤੇ 14 ਜੁਲਾਈ 2013 'ਤੇ ਟਿੱਪਣੀ
https://www.youtube.com/watch?v=n1E_CPxR3LA is probably quite interesting for you