Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Built Environment (hierarchy name)
4. Single Built Works (hierarchy name)
5. single built works (built environment)
6. [single built works by specific type]
7. [single built works by function]
8. fortifications (built environment)

Narrower term/s

• fortlets
• hillforts
• star-forts
• bastioned forts
• promontory forts
• polygonal forts
• pā tūwatawata

Anotations

Scope note:

Permanent fortifications for troops, often surrounded by such elements as ditches, parapets, and ramparts and often used as advance posts in or near hostile territory. Smaller and less heavily fortified than "fortresses."