Included with the article is a poster showing the ecosystems of the Rocky Mountain. Click here for a larger view of the poster. Click here to download a version of the full-size poster in PDF format (5.1 Mb) Details of the Poster Two yellow-bellied marmots survey their domain from amidst clusters of blue columbine and yellow arnica, while overhead a red-tailed hawk rides the wind. The marmots' co-denizens on the mountainside include a pika with a mouth full of food and a majestic bighorn sheep. Less obtrusively, a ptarmigan lounges on the rocks at the base of a gnarled bristlecone pine. Should the marmots go down slope, they would find themselves first in the shade of a subalpine fir tree and then under an Engelmann spruce. Venturing further along to the meadow, they could rest in the shade of an aspen tree while observing a herd of grazing elk. In the glacially carved valley below, forests of conifers and a "hanging lake" share the silence with an old mine and ancient rockslides. A domain in the Rockies; life is lovely at the top.