Altus AVA
Encyclopedia
The Altus AVA is an American Viticultural Area
American Viticultural Area
An American Viticultural Area is a designated wine grape-growing region in the United States distinguishable by geographic features, with boundaries defined by the Alcohol and Tobacco Tax and Trade Bureau , United States Department of the Treasury....

 located in northwest Arkansas
Arkansas
Arkansas is a state located in the southern region of the United States. Its name is an Algonquian name of the Quapaw Indians. Arkansas shares borders with six states , and its eastern border is largely defined by the Mississippi River...

 near the town of Altus
Altus, Arkansas
Altus is a town in Franklin County, Arkansas, United States. It is part of the Fort Smith, Arkansas-Oklahoma Metropolitan Statistical Area. The population was 817 at the 2000 census. When the Iron Mountain Railroad laid rails up the Arkansas River Valley in the 1870s from Little Rock to the...

 in Franklin County. The wine region is entirely contained within the Arkansas Mountain AVA
Arkansas Mountain AVA
The Arkansas Mountain AVA is an American Viticultural Area located in the Ozark Mountains of northwestern Arkansas. It is part of the larger Ozark Mountain AVA, which also includes regions in Missouri and Oklahoma. The smaller Altus AVA is entirely contained within the Arkansas Mountain AVA. The...

, which is in turn contained within the larger multi-state Ozark Mountain AVA
Ozark Mountain AVA
The Ozark Mountain AVA is an American Viticultural Area located in northwest Arkansas, southern Missouri, and northeast Oklahoma. The sixth largest American Viticultural Area in total size, Ozark Mountain AVA covers...

. The Altus region is a plateau
Plateau
In geology and earth science, a plateau , also called a high plain or tableland, is an area of highland, usually consisting of relatively flat terrain. A highly eroded plateau is called a dissected plateau...

 above the Arkansas River
Arkansas River
The Arkansas River is a major tributary of the Mississippi River. The Arkansas generally flows to the east and southeast as it traverses the U.S. states of Colorado, Kansas, Oklahoma, and Arkansas. The river's initial basin starts in the Western United States in Colorado, specifically the Arkansas...

 to the south and below the Boston Mountains
Boston Mountains
The Boston Mountains area is a high and deeply dissected plateau located in northern Arkansas and eastern Oklahoma. The Oklahoma portion of the range is locally referred to as the Cookson Hills. The rocks of the region are essentially little disturbed, flat-lying sedimentary layers of the Paleozoic...

 to the north. The soil is gravel
Gravel
Gravel is composed of unconsolidated rock fragments that have a general particle size range and include size classes from granule- to boulder-sized fragments. Gravel can be sub-categorized into granule and cobble...

 and loam
Loam
Loam is soil composed of sand, silt, and clay in relatively even concentration . Loam soils generally contain more nutrients and humus than sandy soils, have better infiltration and drainage than silty soils, and are easier to till than clay soils...

, with a high acid
Acid
An acid is a substance which reacts with a base. Commonly, acids can be identified as tasting sour, reacting with metals such as calcium, and bases like sodium carbonate. Aqueous acids have a pH of less than 7, where an acid of lower pH is typically stronger, and turn blue litmus paper red...

ity. Five wineries in the area produce nearly 1000000 gallons (3,785,412 l) of wine per year.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK