Rig and furrow was a type of cultivation practised in upland areas of the British Isles

British Isles

The British Isles are a group of islands off the northwest coast of continental Europe that include the islands of Great Britain and Ireland and over six thousand smaller isles. There are two sovereign states located on the islands: the United Kingdom of Great Britain and Northern Ireland and...

 which differs from the more common ridge and furrow

Ridge and furrow

Ridge and furrow is an archaeological pattern of ridges and troughs created by a system of ploughing used in Europe during the Middle Ages. The earliest examples date to the immediate post-Roman period and the system was used until the 17th century in some areas. Ridge and furrow topography is...

 in that it appears to have been created through excavation by spade

Spade

A spade is a tool designed primarily for the purpose of digging or removing earth. Early spades were made of riven wood. After the art of metalworking was discovered, spades were made with sharper tips of metal. Before the advent of metal spades manual labor was less efficient at moving earth,...

 rather than plough

Plough

The plough or plow is a tool used in farming for initial cultivation of soil in preparation for sowing seed or planting. It has been a basic instrument for most of recorded history, and represents one of the major advances in agriculture...

.

The technique improved drainage by creating raised areas of cultivation and furrows to carry away water. The medieval strip field

Open field system

The open field system was the prevalent agricultural system in much of Europe from the Middle Ages to as recently as the 20th century in some places, particularly Russia and Iran. Under this system, each manor or village had several very large fields, farmed in strips by individual families...

 system caused the rigs to be long and thin.

The system was applied during the medieval and post-medieval periods especially in Scotland

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

where examples of the corrugated landscape of raised rigs and deep furrows survive in some areas today.