Here, Barshaw Park provides a convenient boundary between the district and its larger neighbour.

It provides a boundary that can measure (validate) the capacity of our work.

They may also provide a boundary between species due to the obstructive nature of their terrain.

The mountains provide a pleasant boundary to our lives.

The Duck River provides a boundary with Auburn, to the east.

A row of unmatched, colorful table lamps provided a boundary at one side.

The mountain provides a boundary between two watersheds.

Although the enclosure wall is currently being encroached upon, it provides a natural boundary that should be defined as a protected area in the future.

Scales establish rules for all performers to adhere to in melodic performance, and provide a tonal boundary.

The mountains provide a natural boundary between the North and South of the country.