Each of the six studied images is marked in a purple box with a green line denoting the bottom of the image (which shows the image orientation).

Images and filenames:

	1: dan_boulder_2a/136880451
	2: dan_boulder_2/133864085
	3: dan_boulder_2/135268359
	4: dan_boulder_2a/132895502
	5: dan_boulder_2a/135412435
	6: dan_boulder_2a/140761925

The incomplete cyan grid marks longitude and latitude (between 26N and 10N) lines. Lowest latitude in image #6 is 2.96 degrees N.

Red longitude lines mark the area studied, with 191 degrees the approximate center. The white line is the exact line identified by Dan, with the following anchor points:

	00.0N, 190.5W
	10.0N, 191.8W
	20.0N, 191.3W
	28.0N, 190.3W 

Source of the context image and contour map: POINTS. Context image: 128156716.