blue brown bushes cliffs clouds desert gray green mountains pines Red Rocks rust sky springtime trees white leaves peaceful red rock rocks spring stems vacation wild flowers yellow grass path red Rock Garden trail Utah walkway plants rock formations sage sand wildflowers Desert Mountains Dirt fins formation hoodoos limestone Slot Canyons spires trails windows arches cactus valley wall blooming flowers sagebrush canyon road Tan bird birds bloom blossom branch bud coral tree erythrina Erythrina abyssinica fly red hot poker tree tree