cave in the picturesque mountains. genga, marche, italy. the appennines. natural background

terrain cliff tree rock formation geology jungle ravine plant waterfall trail ridge vegetation flower mountain green wilderness stream cave picturesque mountains genga marche italy appennines natural background mountain landscape view peaks appennines appennino marchigiano travel genga italy marche europe sky background trekking excursion nature asphalt mountains way national tourism scenic scenery park natural outdoor summer forest curve tree green clouds route vertical rural rock grass drive trip hill country rocks trees canyon peak cliff valley