autumn ambience on the small alpine river riale della passera in swiss mountain area of st. gotthard pass gotthardpass

airolo alpine ambience area autumn beautiful beauty canton canyon creek della europe flow flowing forest forrest fresh gotthard gotthardpass grass green hill horizon landscape meadow mountain mountains natural nature outdoor outdoors panorama park pass passera peak plant riale river rivers rock scene scenery scenic schweiz sky small stone stones stream swiss switzerland tessin ticino tourism travel tree trees vacation valley view water waterfall white wild wood