As usual the above given reference coordinates have nothing to do with the final but you can park your car there.
This area, also known as Hill 313, was a bloody battle area during the Second World War. The fighting took place during the period of 16th through 22nd of December 1944, when the American troops were fighting against the German division which tried to capture the main road from Echternach to Luxembourg.
A stone with a memorial plaque is situated near the reference coordinates. If you follow the path uphill to the forest, you can still find many remains of the "foxholes" made by the soldiers. The "Ouschteree" is also somewhere in the same forest, but to get the coordinates, you should first solve the Magic Book Riddle.