I've found that when I plot using the MAP() function in IDL 8.1, in this case a Cylindrical projection using limits = [-180, -35, 180, 35], that I cannot get the latitude labels to be positioned to the left of the map when center_longitude=180. When the map function's label_position=0, the latitude labels are positioned at 180 degrees (middle of the map). When label_position=1, the latitude labels are positioned to the right of the map. I cannot get the labels to move any farther to the left than 180 degrees. However, when I create a map with 0 degrees as the center latitude, I can move the latitude labels from the far left of the map (label_position =0) to the far right (label_position=1). Is this a known issue? Is there a workaround?