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Aspen stand

Vegetation

The mountainous areas of the Popo Agie Watershed are dominated by  various evergreen tree species. Pine, spruce, and fir species are a  familiar sight and create a rich and diverse forest environment. Large  aspen and cottonwood stands are common throughout the  watershed, and the sparkling spring green and rich hues of fall create  memorable scenery. There are several grasses that cloak the  landscape including Bluebunch and Western wheatgrass, fescue, Blue  grama, and various needle grass and brome species. The characteristic and familiar sagebrush, rabbitbrush, and antelope bitterbrush  dominate the vast landscape at lower elevations.


Wind River Peak

Climate

Climate within the Popo Agie Watershed varies depending on the elevation  and season. Elevation ranges from over 13,000 feet above sea  level at the majestic landmark of Wind River Peak (13,976 feet), to 5,000  feet above sea level near the historic coal mining town of Hudson. The  Wind River Mountain Range creates a "rain shadow" effect by blocking  precious moisture arriving from Pacific Ocean creating a semi-arid climate.  On average, the Lander area receives approximately 13.2 inches of annual  precipitation, most of which arrives when upslope conditions are present.  Temperatures also vary with summer extremes reaching 100 degrees  Fahrenheit and winter lows plunging well below zero.

Climate/Vegetation