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Attribution-Share Alike 2.0 Generic license. Attribution: Sink hole ('Shake Hole') on Jack Hole Flat by Tim Heaton You are free: to share – to copy, distribute...
Commons Attribution-Share Alike 2.0 Generic license. Attribution: Sink hole on Jack Hole Flat by Tim Heaton You are free: to share – to copy, distribute...
Commons Attribution-Share Alike 2.0 Generic license. Attribution: Sink hole ('Shake Hole') on Craven Moor by Tim Heaton You are free: to share – to copy...
Creative Commons Attribution-Share Alike 2.0 Generic license. Attribution: Sink hole by Alan Hughes You are free: to share – to copy, distribute and transmit...
Creative Commons Attribution-Share Alike 2.0 Generic license. Attribution: Sink hole by Richard Webb You are free: to share – to copy, distribute and transmit...
Commons Attribution-Share Alike 2.0 Generic license. Attribution: Doline / sink hole by N Chadwick You are free: to share – to copy, distribute and transmit...
Creative Commons Attribution-Share Alike 2.0 Generic license. Attribution: Sink hole by Crossgates Road by Andrew Curtis You are free: to share – to copy,...
Creative Commons Attribution-Share Alike 2.0 Generic license. Attribution: A Sink Hole in Dunbar by Jennifer Petrie You are free: to share – to copy, distribute...
Creative Commons Attribution-Share Alike 2.0 Generic license. Attribution: Sink hole, Holgate Pasture by Oliver Dixon You are free: to share – to copy, distribute...