fortynine palms oasis trail in joshua tree national park california usa wpa woodcut black and white art

administration america and area art artwork black california conservation deal desert design engraving fan federal filifera fortynine gray grayscale illustration image joshua landscape monochrome monochromic monument mountain national natural nature new oasis palm palms park pictorial picturesque portrait poster print printing program project protected range retro scenery screen silk states stencil tone trail tree twentynine united usa valley vector vintage washingtonia white wilderness wood woodblocks woodcut works wpa xylography