hohe acht road in winter, several up hill curves

infrastructure unpredictable nordschleife nrburgring serpentine landscape transport november volcanic mountain downhill freezing blizzard waterway covered volcano germany weather hairpin asphalt highway winter curves autumn adenau street hills eifel steep curve frost track plant hohe acht road hill snow 2024 west area cold tree lane soil wet ice country rural scene countryside season seasonal driving direction marking roads wonderland forest december frozen icy mountain hohe acht mountain eifel landscape green hell road adenau nurburg herschbroich