Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Built Environment (hierarchy name)
4. Settlements and Landscapes (hierarchy name)
5. landscapes (environments)
6. natural landscapes
7. landforms (terrestrial)

Narrower term/s

• natural bridges

Anotations

Scope note:

Natural, stone structures that have holes through their centers formed by selective erosion. For similar natural structures that were formed by a current of water, use "natural bridges." Historically, usage of "natural bridges" and "natural arches" has overlapped.