loch lake in rocky mountain national park within front range of rocky mountains located in northern colorado wpa poster art

administration alpine america area art arts artwork colorado conservation deal design federal flat flora forest forestland forests front glacier gorge graphic illustration lake landscape loch meadow monument mountain mountainous mountains national natural nature new nostalgia park poster print printing program project protected range retro revivalism rocky scenery screen section silk states style throwback tundra united vector vintage visual wilderness works wpa