Elk Ranch Reservoir
{{Infobox lake
| name = Elk Ranch Reservoir
| image =
| caption =
| image_bathymetry =
| caption_bathymetry =
|pushpin_map=Wyoming
| location = Grand Teton National Park, Teton County, Wyoming, US
| coords = {{coord|43|48|20|N|110|28|24|W|type:waterbody_region:US|display=inline,title}}{{cite gnis|id=1588247|name=Elk Ranch Reservoir|accessdate=2011-12-02}}
| type = Reservoir
| inflow =
| outflow =
| catchment =
| basin_countries = United States
| length = {{convert|.65|mi|abbr=on}}
| width = {{convert|.25|mi|abbr=on}}
| area =
| depth =
| max-depth =
| volume =
| residence_time =
| shore =
| elevation = {{convert|6860|ft|abbr=on}}
| islands =
| cities =
}}
Elk Ranch Reservoir is located in Grand Teton National Park, in the U. S. state of Wyoming.{{Cite map|publisher=Topoquest (USGS Quads)|title=Davis Hill, WY|url=http://www.topoquest.com/map.php?lat=43.80571&lon=-110.47185&datum=nad83&zoom=4&map=auto&coord=d&mode=zoomin&size=m|accessdate=2011-12-02}} Elk Ranch Reservoir is in the eastern section of the park and is impounded by the Uhl Dam, which is an {{convert|800|ft|m|adj=mid|-long}} earth-filled dam constructed in the 1940s on land later acquired and incorporated into Grand Teton National Park.{{cite web |last=Daugherty |first=John |title=A Place Called Jackson Hole |url=http://www.nps.gov/history/history/online_books/grte2/hrs11.htm |work=Reclamation and Irrigation |publisher=Grand Teton Natural History Association |accessdate=2011-12-02 |date=July 24, 2004 |url-status=dead |archiveurl=https://web.archive.org/web/20110130064911/http://www.nps.gov/history/history/online_books/grte2/hrs11.htm |archivedate=2011-01-30 }}