I've had a look at 2 of the maps we have available and decided to see if I could make any sense of the markings. I decided to rotate the image at some point as was suggested here to match geographical north (haven't confirmed this personally yet). Here are some scribbles:
http://imgur.com/a/cbkTO
1. So in both maps I was able to draw lines from the 2 groups at G which converge at the rocket shaped marking at A.
2. In the colored map I was able to draw a line from there over one of the beacons to the centre of the triangle at B.
3. The "random" pieces of wall inside the hexagon could be pointing places so connecting those I was able to draw two lines through group E, which then led to another piece of wall which directed the line straight through the middle of group D. There things stopped unfortunately. To slightly deviate from an assumption below, this line did originally end at a beacon instead of group D.
4. When connecting the pieces of wall you can draw a line all the way from left to right going through the middle of the planet.
Some assumptions, ideas:
1. Ram Tah has not made any remarks about there being a link between the crash sites and the ruins. He did however mention sites which would suggest there is more than one. The Galnet news refers to him as leading the research at the ruins. This could be just this site or several.
2. I thought it was a great idea to compare the before and after 2.2.03 pictures but I think that will only help if you know the answer. Without the answer it's best to focus on what we have and not confuse things further.
3. The pieces of wall around the edges are there for re-inforcement only (not likely), it's a sun dial (with a cycle that long, not likely), it's a distance measure (most likely, cut out some of the markings that seemed to be at the same angle and got a pretty good match)
4. The piece of wall along the left side is at a different angle on purpose (hopefully, as it points to the middle of group A in the greyscale map)
5. Group C could be just a picture of a different kind of spaceship, or it could be a course change (270 degrees to 30 degrees), or it could be coordinates (with some goodwill the left group is 8 x 4 with one piece missing would make 7 x 4 and 1 x 3, makes 31)
6. It's hard to think of the "pyramids" as anything other than pointers/markers so perhaps the bottom one shows the start point for navigation?
7. Group G is also following the lines of the hill they are on so you could just view them as an indication there are 2 sites in the system / this planet's orbit instead of they're angles actually meaning something.
8. I like the idea of this leading us to Sol but I think it would disappoint too many people without the proper permit for that to be the solution to the puzzle.
I need to take some pics myself to get some more conclusive drawings and I need to check out the "pyramid" outside the hexagon for myself. I didn't realize it was there until today.
Questions:
1. Why do group A and B have 3 markings looking like rockets when group E only has one in the triangle (but 3 in total) and the other planet doesn't have any rockets on it?
2. Why is there a second piece of wall at the end of the "stick", it doesn't seem to be able to link with anything?