adventure alaska alpine america clouds destination evergreen excursion north fog forest frontier gold rush green high highland historic industry journey landscape mountain narrow railroad nature outdoor panorama park peak rail railway recreation route scenery scenic sightseeing skagway slope southwest summer tongass tourism train transport transportation travel trees vacation white pass wilderness attraction boulder broken collapse damage debris dirt earth eroded erosion formation gravel ground hill landfall landslide retro rock rockslide rubbish terrain track tree alaska attraction boulder broken cliff collapse damage debris destination destruction dirt earth eroded erosion evergreen excursion formation frontier gravel ground highland hill historic landfall landscape landslide mountain narrow rail railroad railway recreation retro rock rockslide route rubbish sightseeing skagway slope southwest tourism track train transportation travel tree vacation pass