Lake Ouiachic

Infobox lake
lake_name = Lake Ouiachic
image_lake = Ouiachic.jpg
caption_lake = from space, October 1994
image_bathymetry =
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location = Sierra Madre Occidental
coords = coord|27|53|N|109|55|W|region:MX_type:waterbody|display=inline,title
type = reservoir
inflow = Yaqui River
outflow = Yaqui River
catchment =
basin_countries = Mexico
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Lake Ouiachic (also referred to as the Álvaro Obregón Reservoir) is located in the foothills of the Sierra Madre Occidental (coord|27|53|N|109|55|W|region:MX_type:waterbody). Lake Ouiachic is fed by and drained by the Yaqui River. The dam was completed in 1952 with the purpose to regulate water flow of the Yaqui River, prevent floods, and generate electricity. Lake Ouiachic is also an expanding tourist and resort area specializing in fishing, boating, and water skiing.