The first map shows two start/finish areas. The SE one is where competitors started out from quarantine onto the courses. The northern one is where your time actually started and stopped for solving controls 1 through 5. Then you could walk off the clock south to the other section where you once again went on the clock to solve controls 6 through 10.
In each map there is a small area outlined by purple dash which shows the approximate outline of where the competitors had to view from while solving the problems. Each team had three members with different versions of the course (A,B,C). These pictures are course version C. Each version uses the same controls and viewing sites, but has a different circle on the map and a different answer.
You can see the many rock features in the area. Some are very massive cliffs. The relay was different, as we were looking down on them from above. The other competitions have been from below.
Team USA was 18th out of 19 teams in the open category.
A photo from the second PreO day to give you an idea of the cliffs. Can you find the control flag in this picture?