alp alps Chamonix cold glacier global warming ice mont blanc mountain mountains peak skiing snow summit vallée blanche winter bare bleak canada craggy difficult hard jasper landscape natural nature panorama range rock Rockies Rocky Mountains rough shale view Africa beduin beduins boy desert deserts landscapes men portrait portraits sahara sand silence sunset wild wind cliff conifer destination direction empty forest highway Icefields Parkway open road route tarmac travel tree autumn city dead deforestation dry ecology environment environmental erosion hill old plant root Stump taiga descend fall freezing frozen lake slide altitude distant dolomites Fir green high hut Italy montane remote valley wilderness wooden blue blues calm greenery plants sea skies sky soothing trees water