https://maproulette.org/challenge/39513/task/167741697
https://maproulette.org/challenge/39513/task/167741601
https://maproulette.org/challenge/39513/task/167741510
https://maproulette.org/challenge/39513/task/167741493
https://maproulette.org/challenge/39513/task/167741639
https://maproulette.org/challenge/39513/task/167741538
https://maproulette.org/challenge/39513/task/167741522
https://maproulette.org/challenge/39513/task/167741612
https://maproulette.org/challenge/39513/task/167741567
https://maproulette.org/challenge/39513/task/167741571
https://maproulette.org/challenge/39513/task/167741502
https://maproulette.org/challenge/39513/task/167741499
https://maproulette.org/challenge/39513/task/167741681
https://maproulette.org/challenge/39513/task/167741677
https://maproulette.org/challenge/39513/task/167741676
https://maproulette.org/challenge/39513/task/167741638
https://maproulette.org/challenge/39513/task/167741670
https://maproulette.org/challenge/39513/task/167741671
https://maproulette.org/challenge/39513/task/167741672
https://maproulette.org/challenge/39513/task/167741673