The acre is a unit of land area used in the imperial and US customary systems. It is defined as the area of 1 chain (22 yards) by 1 furlong (220 yards), which is exactly equal to ¹⁄₆₄₀ of a square mile, 43,560 square feet, approximately 4,047 m², or about 40% of a hectare.

The acre is commonly used in Antigua and BarbudaAustralia, American Samoa,The Bahamas,Belize, the British Virgin Islands, the Cayman Islands,Canada,Dominica, the Falkland Islands,Grenada,Ghana, Guam, the Northern Mariana Islands,India, Ireland, Jamaica,Montserrat,Myanmar, Pakistan, Samoa,St. Lucia,St. Helena,St. Kitts and Nevis,St. Vincent and the Grenadines,Turks and Caicos, the United Kingdom, the United States and the US Virgin Islands.

The international symbol of the acre is ac. The most commonly used acre today is the international acre. In the United States both the international acre and the slightly different US survey acre are in use. The most common use of the acre is to measure tracts of land. One international acre is defined as exactly 4,046.8564224 square metres.

Acres is a surname. Notable people with the surname include:

See also

Coordinates: 53°35′09″N 2°23′58″W / 53.5859°N 2.3994°W / 53.5859; -2.3994

Seven Acres Country Park is, despite what its nineteenth-century name implies, a 15-acre (61,000 m²) Local Nature Reserve in the town of Bolton, in Greater Manchester. It lies between the areas of Tonge and Breightmet, and is dissected by Bradshaw Brook. Seven Acres Country Park is more than 300 years old, and is depicted on maps dating back to at least 1764.

History

Today, Seven Acres Country Park encompasses more acreage than the nineteenth century-dubbed-name implies. Former folds such as Ellis Fold, along with its surrounding enclosed fields, are now incorporated into the Country Park making the entire area more than fifteen acres.

Habitat

Seven Acres Country Park is made up of ten kinds of habitat, including heathland, acid grassland, open water and broad-leaved woodland. Seven Acres Country Park is home to many kinds of wildlife. There are over 70 kinds of bird, including kingfisher, dipper, sparrowhawk, kestrel, song thrush, bullfinch, grey heron and blackcap. There are at least 18 kinds of butterfly, including painted lady, red admiral, holly blue, brimstone, speckled wood, small copper and wall brown. There are at least ten types of dragonfly, including broad bodied chaser, banded demoiselle, brown hawker and migrant hawker.