Alpine Tundra Grandeur
Trail Ridge Road is barely visible here at the top of the image as it nears the pass (it's highest point) in Rocky Mountain National Park. Alpine tundra is a complex of high-elevation meadows, fell (barren) fields, and talus (rock) slopes above treeline. Depending on latitude, treeline occurs between 3,400 and 4,000 metres (11,200 and 13,100 ft) in the United States. This high-diversity area includes alpine sagebrush, tufted hairgrass, clovers, pussytoes, and succulents, and hundreds of grasses and wildflower species.