https://maproulette.org/browse/challenges/28343
https://maproulette.org/browse/challenges/28343
https://maproulette.org/browse/challenges/28357
https://maproulette.org/browse/challenges/28357
https://maproulette.org/browse/challenges/28343
https://maproulette.org/browse/challenges/28343
https://maproulette.org/browse/challenges/28343
https://maproulette.org/browse/challenges/28343
https://maproulette.org/browse/challenges/28343
https://maproulette.org/browse/challenges/28342
https://maproulette.org/browse/challenges/28349
https://maproulette.org/browse/challenges/28349
https://maproulette.org/browse/challenges/28359
https://maproulette.org/browse/challenges/28359
https://maproulette.org/browse/challenges/28359
https://maproulette.org/browse/challenges/28359 -- cleaning up unnecessary restrictions
https://maproulette.org/browse/challenges/28343