Green River Basin
Green River Basin is a vast high-elevation landscape across Wyoming, Utah, and Colorado, feeding the Green River — a key tributary of the Colorado River.
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Geography
| Continent | North America |
|---|---|
| Region | Rocky Mountain States |
| Subregion | Intermountain West |
| Country | United States |
| State | WyomingUtahColorado |
| Timezone | AmericaDenver |
| Latitude | 40 |
| Longitude | -110.5 |
| Maps |
7:15 PM LOCAL TIMEGreen River Basin spans roughly 340,000 square kilometers across Wyoming, Utah, and Colorado, defined by high plains, mountain valleys, and desert uplands. At its core runs the Green River, which flows northwest from Wyoming’s Wind River Range through Utah’s Uinta Mountains and into northeastern Utah; it joins the Colorado River near Lake Powell. Elevations range from about 1,300 meters (4,300 feet) on the plains to over 3,800 meters (12,500 feet) in headwater mountains; the basin’s terrain and climate support a mix of sagebrush, pinyon-juniper, and alpine habitats. The basin is central to regional wildlife migration, recreation — including rafting, fishing, and hiking — and is an important corridor for hydropower, water management, and ranching. Its weather varies with elevation and season, with hot summers and cold, snow-prone winters in mountain zones.
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