Adoption of new tag oneway=alternating: http://wiki.openstreetmap.org/wiki/Tag:oneway%3Dalternating
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains
maproulette - Challenge: Rivers flowing up the mountains