{{Use American English|date=July 2025}} {{More citations needed|date=January 2021}} {{Use mdy dates|date=February 2025}} {{Infobox body of water | name = Lake Elwell | image = | caption = | image_bathymetry = | caption_bathymetry = | location = Liberty / Toole counties, Montana, United States | coords = {{coord|48|19|20|N|111|05|48|W|region:US-MT_type:waterbody_source:gnis|display=inline,title}} | type = reservoir | inflow = Marias River | outflow = Marias River | catchment = | basin_countries = United States | length = | width = | area = {{convert|14842|acre|km2|abbr=on}} | depth = | max-depth = | volume = | residence_time = | shore = | elevation = {{convert|3025|ft|m|abbr=on}} | islands = | cities = <!-- Map --> | pushpin_map = Montana#USA | pushpin_label_position = | pushpin_map_alt = Location of Lake Elwell in Montana, USA. | pushpin_map_caption = <!-- Below --> | website = | reference = }} '''Lake Elwell''' (a.k.a. Tiber Reservoir) is a reservoir in north central Montana. The reservoir was created by the damming of the Marias River at the Tiber Dam. Lake Elwell was named for Judge Charles B. Elwell (1888–1974), former director of the Montana Reclamation Association.<ref>{{cite GNIS|777636|name=Lake Elwell}}</ref>

==See also== * List of lakes in Montana * List of lakes in Liberty County, Montana

==References== {{Reflist}}

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Elwell Category:Bodies of water of Liberty County, Montana Category:Bodies of water of Toole County, Montana Category:Protected areas of Liberty County, Montana Category:Protected areas of Toole County, Montana

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