Yellow aspen trees in the fall, San Juan National Forest, Colorado, United States of America, North America

travel destination photography horizontal colour image day outdoors san juan national forest colorado united states of america north america autumn aspen tree scenics landscape non urban scene physical geography forest nature tree abundance growth populus tremuloides yellow national forest no people usa us united states american north american colour color image color outside tourist destination travel nobody no one no one topography scenery scenic scene scenes picturesque the natural world