Linear or curvilinear construction of earth, turf and stone, often, but not always accompanied by a ditch.

Within this category you have the following sub-types:
- Cross Dyke
- A linear earthwork, usually a bank accompanied by a ditch, which runs across rather than along an area or ridge of higher ground.
- Linear Earthwork
- A substantial bank and ditch forming a major boundary between two adjacent landholdings. Most date from the late Bronze Age and Iron Age.
- Linear Feature
- A length of straight, curved or angled earthwork or cropmark of uncertain date or function.
- Rifle Range
- A series of earthworks or structures (yard markers) marking a set distance from the rifle butts (usually at 50 or 100 yard intervals).
- A series of earthworks or structures (yard markers) marking a set distance from the rifle butts (usually at 50 or 100 yard intervals).

