In northwest Australia, the Great Sandy Desert and Gibson Desert holds great geological interest as a zone of active sand dune movement. While a variety of dune forms appear across the region, this it is typical of the region along the Gary Junction Road features numerous linear dunes (about 25 meters high) separated in a roughly regular fashion (0.5 to 1.5 kilometers apart). The dunes are aligned to the prevailing winds that generated them, which typically blow from east to west. Where linear dunes converge, dune confluences point downwind. When you fly over such dune fields-either in an airplane or the International Space Station-the fire scars stand out. Where thin vegetation has been burned, the dunes appear red from the underlying sand; dunes appear darker where the vegetation remains.
To log this cache, go to the listed coordinates and email me the answers to these questions. You can immediately log the find and if there are any problems I will contact you.
QUESTIONS
Q1 How far apart are the sandhills running to the north and south of the coordinates. Your best estimate is all that is required.
Q2 Comment on the colour of the sandhill formations; is it different to the rest of the terrain?