Bears are active in Grand Teton
Black and grizzly bears are roaming throughout the park--near roads, trails and in backcountry areas. Hikers and backcountry users are advised to travel in groups of three or more, make noise and carry bear spray. Visitors must stay 100 yards from bears. More »
Area closure in the area around Baxter's Pinnacle
An area closure is in effect around Baxter's Pinnacle to protect nesting peregrine falcons. This closure precludes any climbs of Baxter's Pinnacle and usage of the walk-off gully. This closure will be in effect through 8-15-2013. More »
Area Closure in effect in the Elk Ranch area
A temporary area closure is in effect in the Elk Ranch Area to protect wildlife during the denning and young-rearing period. Follow the link for a map of the closed area. More »
Over 1000 species of vascular plants grow in Grand Teton National Park and the surrounding area. Soil conditions, availability of moisture, slope, aspect, and elevation all determine where plants grow. Plants that require similar conditions are often found growing in the same area. These associations form various plant communities. It is useful to divide the plants of Grand Teton National Park into the following communities: sagebrush flats, riparian corridors and wetlands, forests, and alpine areas.
The valley floor of Jackson Hole is comprised of loose rocky soil that allows water to percolate through easily. Silvery-green big leaf sagebrush blankets the valley. Although at first glance it appears that only sage grows on the flats, this area is remarkably diverse.
Moisture-loving plants find suitable growing conditions along the Snake River, its tributaries, and other wetland areas. Narrow leaf cottonwood and willows, both of which thrive in wet areas, grow along the watercourses, creating ribbons of bright green across the landscape. Wet meadows provide the conditions suited to grasses, sedges, and wildflowers.
The canyons, mountainsides, and ridges formed of glacial debris, called moraines, contain soils capable of holding moisture. These conditions support the growth of trees. Conifers dominate these areas, coloring the slopes a dark green.
Although they appear gray and lifeless, the high alpine reaches of the park support plants specially adapted to the harsh growing conditions found there. Wind, snow, lack of soil, increased ultraviolet radiation, rapid and dramatic shifts in temperature, and a short growing season all challenge the hardy plants that survive here. Most plants adapt by growing close to the ground in mats like the alpine forget-me-not.
Greater Yellowstone Science and Learning Center
Did You Know?
Did you know that a large fault lies at the base of the Teton Range? Every few thousand years earthquakes up to a magnitude of 7.5 on the Richter Scale signal movement on the Teton fault, lifting the mountains skyward and hinging the valley floor downward.