Largest lakes & reservoirs in Ouachitas Region, AR by water volume
The estimated volume of water that a lake contains is measured at the lake’s normal elevation. By this measure, the world’s largest freshwater lake is Siberia’s Lake Baikal.Water Volume can be measured in acre-feet, in cubic miles, or in cubic kilometers. One acre-foot is the amount of water needed to cover one acre (43,560 square feet) to a depth of one foot. One cubic mile equals 3,379,200 acre-feet. One cubic kilometer equals 810,713 acre-feet. 1 acre-foot is equal to 325,851 US gallons. Siberia’s Lake Baikal contains about 6,276,367,740,000,000 gallons of freshwater – nearly 1 million gallons for every living person on earth.
The other – and more widely used – measure of a lake’s size is the lake’s surface acreage. By that measure, the world’s largest freshwater lake is North America’s Lake Superior.
Note: In the United States, an acre foot is a unit of volume used to refer to large-scale bodies of water. It is defined by the volume of water needed to cover 1 acre of surface area to a depth of 1 foot.
You can find many of the the world’s largest lakes (by water volume) on LakeLubbers. Note: For some lakes, the water volume data is unknown or does not apply, so you may see fewer lakes than the total 12 articles we have published for Ouachitas Region, AR lakes.
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Below are lakes within USA > US South Region > Arkansas > Ouachitas Region, AR > Compared by water volume. This list does not represent all lakes in Ouachitas Region, AR, only the 12 Ouachitas Region, AR lake articles we have published on the LakeLubbers website.
Lake name  |
Water vol. in ac-ft |
Lake description |
|---|---|---|
| Lake Ouachita, AR (Arkansas, Ouachitas Region, AR, US South Region, USA) |
2,768,000 ac-ft | (Also known as Blakely Mountain Dam Reservoir) Lake Ouachita is completely surrounded by the Ouachita National Forest. It’s the largest lake located entirely within the state of Arkansas. More than … |
| DeGray Lake, AR (Arkansas, Ouachitas Region, AR, US South Region, USA) |
1,377,000 ac-ft | DeGray Lake is nestled in the foothills of the Ouachita Mountains, in an area logically known as the Ouachita Mountain Region of Arkansas. This sectio … |
| Lake Greeson, AR (Arkansas, Ouachitas Region, AR, US South Region, USA) |
279,700 ac-ft | Southwest of Little Rock, Arkansas in the foothills of the Ouachita Mountains, lies a hidden mountain treasure. Lake Greeson is one of the oldest rese … |
| Lake Hamilton, AR (Arkansas, Ouachitas Region, AR, US South Region, USA) |
183,160 ac-ft | Located on the southern edge of Hot Springs, Lake Hamilton is a premier vacation destination. This beautiful lake was formed in 1932 with the construc … |
| Lake Catherine, AR (Arkansas, Ouachitas Region, AR, US South Region, USA) |
36,700 ac-ft | With 1,940 surface acres, Lake Catherine is a relatively small lake, but it has big recreation opportunities for outdoor enthusiasts and anglers alike … |
| DeQueen Lake, AR (Arkansas, Ouachitas Region, AR, US South Region, USA) |
34,900 ac-ft | (Also known as Lake DeQueen) DeQueen Lake, proud owner of 32 miles of picturesque shoreline, is nestled in Arkansas’s Ouachita Mountains Region. Located in Sevier County on the Ro … |
| Gillham Lake, AR (Arkansas, Ouachitas Region, AR, US South Region, USA) |
33,113 ac-ft | Gillham Lake is known as “The Bright Spot of the Cossatot” due to its location on the Cossatot River, a challenging white water stream in Arkansas. Th … |
| Dierks Lake, AR (Arkansas, Ouachitas Region, AR, US South Region, USA) |
29,705 ac-ft | Located on the Saline River, Dierks Lake is easy to access off of Highway 70, and with 1,360 acres of water there is plenty of room for boaters and wa … |
| Nimrod Lake, AR (Arkansas, Ouachitas Region, AR, US South Region, USA) |
29,000 ac-ft | (Also known as Lake Nimrod) Arkansas’s State Scenic 7 Byway travels from the timberlands in southern Arkansas at the old oil boom town of El Dorado, and ascends through the mount … |
| Harris Brake Lake, AR (Arkansas, Ouachitas Region, AR, US South Region, USA) |
7,800 ac-ft | The essence of small-town life is vastly different from one community to the next and in the Arkansas River Valley, Harris Brake Lake gives the tiny t … |