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Coordinates: 44°26′27″N 110°43′09″W / 44.44083°N 110.71917°W / 44.44083; -110.71917
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'''Isa Lake''' is located in [[Yellowstone National Park]], in the [[U.S. state]] of [[Wyoming]].<ref>{{cite web| title =Craig Pass, USGS Craig Pass (WY) Topo Map| work =| publisher =TopoQuest USGS Quads| date =| url =http://www.topoquest.com/map.asp?lat=44.44083&lon=-110.71833&datum=nad27&u=4&layer=DRG&size=l&s=50| format =Map| accessdate = 2008-06-29}}</ref> The lake straddles the [[Continental Divide of the Americas|continental divide]] at [[Craig Pass]] and was first discovered in 1891 by [[Hiram M. Chittenden]], who was exploring the best routes for a road to connect [[Old Faithful]] and [[West Thumb]] geyser basins. Chittenden named the lake after Miss Isabel Jelke, from [[Cincinnati]], though it is not clear why.<ref name="isa">{{cite web | last = | first = | author-link = | year = | url =http://www.nps.gov/yell/planyourvisit/grant-area-nat-highs-5.htm | title = Isa Lake| work = Grant Area Natural Highlights | publisher = National Park Service| accessdate = 2012-08-04}}</ref><ref>{{cite book | url=https://archive.org/details/bub_gb_9V1IAAAAMAAJ | title=The Origin of Certain Place Names in the United States | publisher=Govt. Print. Off. | author=Gannett, Henry | year=1905 | pages=[https://archive.org/details/bub_gb_9V1IAAAAMAAJ/page/n155 166]}}</ref>
'''Isa Lake''' is located in [[Yellowstone National Park]], in the [[U.S. state]] of [[Wyoming]].<ref>{{cite web| title =Craig Pass, USGS Craig Pass (WY) Topo Map| publisher =TopoQuest USGS Quads| url =http://www.topoquest.com/map.asp?lat=44.44083&lon=-110.71833&datum=nad27&u=4&layer=DRG&size=l&s=50| format =Map| access-date = 2008-06-29}}</ref> The lake straddles the [[Continental Divide of the Americas|continental divide]] at [[Craig Pass]] and was first discovered in 1891 by [[Hiram M. Chittenden]], who was exploring the best routes for a road to connect [[Old Faithful]] and [[West Thumb]] geyser basins. Chittenden named the lake after Miss Isabel Jelke, from [[Cincinnati]], though it is not clear why.<ref name="isa">{{cite web | url =http://www.nps.gov/yell/planyourvisit/grant-area-nat-highs-5.htm | title = Isa Lake| work = Grant Area Natural Highlights | publisher = National Park Service| access-date = 2012-08-04}}</ref><ref>{{cite book | url=https://archive.org/details/bub_gb_9V1IAAAAMAAJ | title=The Origin of Certain Place Names in the United States | publisher=Govt. Print. Off. | author=Gannett, Henry | year=1905 | pages=[https://archive.org/details/bub_gb_9V1IAAAAMAAJ/page/n155 166]}}</ref>
[[File:Continental Divide sign at Two-Ocean Lake.JPG|250px|thumb|right|Map of [[Continental Divide of the Americas|Continental Divide]] at Isa Lake]]
[[File:Continental Divide sign at Two-Ocean Lake.JPG|250px|thumb|right|Map of [[Continental Divide of the Americas|Continental Divide]] at Isa Lake]]
Isa Lake is believed to be one of the few natural lakes in the world which drain to two different oceans, another being [[Wollaston Lake]].<ref name="isa"/> (For similar cases see [[List of unusual drainage systems]].) The east side of the lake drains by way of the [[Lewis River (Wyoming)|Lewis River]] to the [[Pacific Ocean]] and the west side of the lake drains by way of the [[Firehole River]] to the [[Gulf of Mexico]].<ref>{{cite web| url =http://www.wyomingtourism.org/articles/detail/Isa-Lake-in-Yellowstone-National-Park/405324| title =Isa Lake| publisher =Wyomingtourism.org| accessdate =2012-08-04| archive-url =https://web.archive.org/web/20140921083101/http://www.wyomingtourism.org/articles/detail/Isa-Lake-in-Yellowstone-National-Park/405324| archive-date =2014-09-21| url-status =dead}}</ref>
Isa Lake is believed to be one of the few natural lakes in the world which drain to two different oceans, another being [[Wollaston Lake]].<ref name="isa"/> (For similar cases see [[List of unusual drainage systems]].) The east side of the lake drains by way of the [[Lewis River (Wyoming)|Lewis River]] to the [[Pacific Ocean]] and the west side of the lake drains by way of the [[Firehole River]] to the [[Gulf of Mexico]].<ref>{{cite web| url =http://www.wyomingtourism.org/articles/detail/Isa-Lake-in-Yellowstone-National-Park/405324| title =Isa Lake| publisher =Wyomingtourism.org| access-date =2012-08-04| archive-url =https://web.archive.org/web/20140921083101/http://www.wyomingtourism.org/articles/detail/Isa-Lake-in-Yellowstone-National-Park/405324| archive-date =2014-09-21| url-status =dead}}</ref>


The lake is easy to visit as it is adjacent to the road that now connects the Old Faithful and West Thumb geysers basins, on what is known as the "lower loop" of the figure-eight roadway which traverses through Yellowstone. The great yellow pond-lily (nuphar polysepalum) thrives in the lake. {{gallery
The lake is easy to visit as it is adjacent to the road that now connects the Old Faithful and West Thumb geysers basins, on what is known as the "lower loop" of the figure-eight roadway which traverses through Yellowstone. The great yellow pond-lily (nuphar polysepalum) thrives in the lake. {{gallery

Revision as of 00:45, 30 January 2021

Isa Lake
Isa Lake
Location of Isa Lake in Wyoming, USA.
Location of Isa Lake in Wyoming, USA.
Isa Lake
Location of Isa Lake in Wyoming, USA.
Location of Isa Lake in Wyoming, USA.
Isa Lake
LocationYellowstone National Park, Teton County, Wyoming, US
Coordinates44°26′27″N 110°43′09″W / 44.44083°N 110.71917°W / 44.44083; -110.71917[1]
TypeNatural lake
Primary outflowsFirehole River (west) (spring only)
Lewis River (east) (spring and early summer)
Basin countriesUnited States
Surface elevation8,262 feet (2,518 m)[1]

Isa Lake is located in Yellowstone National Park, in the U.S. state of Wyoming.[2] The lake straddles the continental divide at Craig Pass and was first discovered in 1891 by Hiram M. Chittenden, who was exploring the best routes for a road to connect Old Faithful and West Thumb geyser basins. Chittenden named the lake after Miss Isabel Jelke, from Cincinnati, though it is not clear why.[3][4]

Map of Continental Divide at Isa Lake

Isa Lake is believed to be one of the few natural lakes in the world which drain to two different oceans, another being Wollaston Lake.[3] (For similar cases see List of unusual drainage systems.) The east side of the lake drains by way of the Lewis River to the Pacific Ocean and the west side of the lake drains by way of the Firehole River to the Gulf of Mexico.[5]

The lake is easy to visit as it is adjacent to the road that now connects the Old Faithful and West Thumb geysers basins, on what is known as the "lower loop" of the figure-eight roadway which traverses through Yellowstone. The great yellow pond-lily (nuphar polysepalum) thrives in the lake.

Notes

  1. ^ a b "Isa Lake". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.
  2. ^ "Craig Pass, USGS Craig Pass (WY) Topo Map" (Map). TopoQuest USGS Quads. Retrieved 2008-06-29.
  3. ^ a b "Isa Lake". Grant Area Natural Highlights. National Park Service. Retrieved 2012-08-04.
  4. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. pp. 166.
  5. ^ "Isa Lake". Wyomingtourism.org. Archived from the original on 2014-09-21. Retrieved 2012-08-04.