..Geography Of Yellowstone

A HIGH MOUNTAINOUS PLATEAU

Continental Divide …The Continental Divide of North America runs roughly diagonally through the southwestern part of the park. The divide is a topographic ridgeline that bisects the continent between Pacific Ocean and Atlantic Ocean water drainages (the drainage from one-third of the park is on the Pacific side of this divide).

For example, the Yellowstone River and the Snake River both have their origin close to each other in the park. However, the headwaters of the Snake River are on the west side of the continental divide, and the headwaters of the Yellowstone River are on the east side of that divide. The result is that the waters of the Snake River head toward the Pacific Ocean, and the waters of the Yellowstone head for the Atlantic Ocean (via the Gulf of Mexico). There is a stream about six miles east of the Old Faithful area called “Two Ocean Creek”: it begins as a single stream which flows into “Two Ocean Pond,” from which two different streams emerge, one flowing to the Snake River and one to the Yellowstone River.

The park sits on a high plateau which is, on average, 8,000 feet (2,400 m) above sea level and is bounded on nearly all sides by mountain ranges of the Middle Rocky Mountains, which range from 10,000 to 14,000 feet (3,000 to 4,300 m) in elevation. These ranges are: the Gallatin Range (to the northwest), Beartooth Mountains (to the north), Absaroka Mountains (to the east), Wind River Range (southeast corner), Teton Mountains (to the south, see Grand Teton National Park) and the Madison Range (to the west). The most prominent summit in the plateau is Mount Washburn at 10,243 feet (3,122 m).

Just outside of the southwestern park border is the Island Park Caldera, which is a plateau ringed by low hills. Beyond that are the Snake River Plains of southern Idaho, which are covered by flood basalts and slope gently to the southwest (see Craters of the Moon National Monument).

The major feature of the Yellowstone Plateau is the Yellowstone Caldera; a very large caldera which has been nearly filled-in with volcanic debris and measures 30 by 40 miles (50 by 60 km). Within this caldera lies most of Yellowstone Lake, which is the largest high-elevation lake in North America, and two resurgent domes, which are areas that are uplifting at a slightly faster rate than the rest of the plateau.

From Wikipedia

  • RSS National Parks Traveler

  • RSS VINOGRAPHY

  • RSS Wine Hiker

    • An error has occurred; the feed is probably down. Try again later.
  • RSS MID CURRENT

    • An error has occurred; the feed is probably down. Try again later.
  • RSS NOAA HEADLINES

    • Severe thunderstorms possible from the upper Midwest to the lower Mississippi Valley
  • RSS FLYFISHMAGAZINE

  • RSS Fly Fishing Colorado

    • An error has occurred; the feed is probably down. Try again later.
  • RSS Trout Nut

  • Feeds For You

    Subscribe with Bloglines





    Fair Use Notice

    --- This site contains copyrighted material the use of which has not always been specifically authorized by the copyright owner. We are making such material available in our efforts to advance understanding of environmental, political, human rights, economic, democracy, scientific, and social justice issues, etc.

    --- We believe this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, the material on this site is distributed without profit to those who have expressed a prior interest in receiving the included information for research and educational purposes.

    --- If you wish to use copyrighted material from this site for purposes of your own that go beyond 'fair use', you must obtain permission from the copyright owner.
  • %d bloggers like this: