Railtrack's biggest single re-railing operation is on more than seven miles of track south of Durham.
He runs his own boutique operation, Mount Bohemia, 450 miles north of Chicago in Michigan's Upper Peninsula.
The Community Baboon Sanctuary (CBS) is a grassroots conservation operation that occupies about 20 square miles, spread over several Creole villages in the Belize River Valley.
Kent County Council (KCC) said 60 gritting trucks fitted with snow ploughs were in operation, gritting 5, 000 miles of the county's roads - half of Kent's network.
Five police forces united to carry out a rural crime operation which covered about 4, 000 sq miles of northern England.
Following reports of a carjacking in the area, a major police operation then unfolded in Watertown, some six miles (10km) from Boston.
At a site 50 miles from Chengdu, the Sichuan capital, a dramatic rescue operation took place when signs of life emerged from a flattened factory.
The BBC's Marks Doyle reports from Diabaly that French troops spearheaded the operation to retake the town, which is about 400km (250 miles) from the capital, Bamako.
In the area that is covered by the regulations, about 30 square miles, there are an estimated 1, 000 fast-food restaurants already in operation.
Under the plan, BP said that the worst spill from a mobile drilling operation would come from a lease called the Mississippi Canyon 462, about 33 miles off the Louisiana coast.
As a massive security operation swung into operation, the Federal Aviation Administration barred low-flying aircraft from within 3.5 miles (5.6km) of the site.
BBC: Boston bombs: FBI probes deadly marathon 'terror' blasts
The operation started in mid-June with an air assault along a canal about 16 kilometers (10 miles) north of the city of Lashkar Gah, the ministry said.
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