Well thanks to Steve Chilton I have discovered that for a nature reserve to be rendered correctly the correct tag is leisure=nature_reserve and not landuse=nature_reserve. When I did the initial upload from JOSM it included about 120,000 points and took about a day to do. What I want to do is add the leisure=nature_reserve tag to all the WMAs that I uploaded in minnesota but do it all at once. I did some poking around in JOSM and am at a loss as to the best way to do this. I can't do a download of the entire state of minnesota, but I don't know if by just making the change to my local dataset (the one I created for the WMAs) will entale reuploading all 120,000 or so points. There are only a couple thoustand (about 2500) WMAs in the state which would be a good size batch. Does anyone have any good suggestions as to how I should do this?