Along the Island Park Caldera Wall; Petrified Forests; Hot Springs This part describes the federal parks, forests, reservoirs, and trails in the Greater Yellowstone ecosystem. Included are the Grand Tetons, Wyoming, Absaroka, Madison, and Little Belt Mountains.  National wilderness areas, which dominate some of the forests, are described in Part C. Some of the more spectacular … More South-Central Rockies Forests, Subsection I, Greater Yellowstone, Part B

Snake-Columbia Shrub-Steppe, Part IV, Columbia Basin Floods of lava, floods of the Ice Age, and dry waterfalls There are several distinct areas of this shrub-steppe ecoregion of the Columbia Plateau (NA 1309). For the purposes of this discussion, the ecoregion is subdivided into four sections, based on biological or geographic criteria. The fourth area, the … More Columbia Basin

The highest density of nesting raptors, thousand-foot-deep canyons, and a tall sand dune States and Coordinates: Idaho-Nevada-Oregon, 41˚ to 45˚ North, 114˚ to 118˚ West There are several distinct areas of the shrub-steppe ecoregion of the Columbia Plateau. For the purposes of this discussion, the ecoregion is subdivided into four sections, based on biological or … More Snake-Columbia Shrub-Steppe, Part II: Treasure Valley and Owyhee Plateau

  Montane Forests and the Cultural Landscape of the Desert Ice Age Lakes, Historic Trails, and Nevada’s Yosemite I. Map Focus Area: 40 to 43 degrees North, 111 to 121 degrees West II. Countries and Subdivisions (States):  United States (California, Idaho, Nevada, Oregon, Utah) III.  Overview The most important event influencing the northeastern Great Basin … More Great Basin Shrub-Steppe, Northern Portion, Part I

Soft-bodied fossils, tree clones, and the California Trail Map Focus Area: 40 to 43 degrees North, 110 to 112 degrees East Countries and Subdivisions (States):  United States (Idaho, Utah, Wyoming) This post includes the Uinta Mountains, northern Wasatch Mountains, and adjoining high plateaus to the east.  The World Wildlife Fund ecoregions are Colorado Plateau shrub-steppe … More Wasatch, Uinta, and Bear River Mountains

Temperate Grasslands,  Savannas, and Shrublands Daurian forest-steppe (PA804).  This mostly grassland area supports scattered forests of birch and willow.  Found in the East Aimag, Khentii Aimag, and Zabaykalsky Krai in the map area.  There are three Ramsar sites, one of which is also a Biosphere Reserve.  The Khurkh-Kuiten River Valley, Khentii Aimag (24) is a Ramsar site which consists of lakes along a … More Mongolian Grasslands, Jehol Fossil Beds, and Daurian Flora, Part 3: Grasslands