Picture taken from the pilot's seat during a flight with Cessna 172 D-ESYT at 5500 feet en route from EDTL to EDFM after we had cancelled IFR. The image gives a good impression of the topography of the Hornisgrinde in the northern Black Forest and the Mummelsee and reveals why the site has been chosen many times during the 20th century for military and communication purposes.