Rock Creek outlines the park's western boundary, and on its farther bank lies the city.
Between the bristling crest of this snow-daubed eastern boundary and the park's western boundary, thousands of feet lower where the forests begin, the region roughly divides into parallel zones.
That the Rio Grande was the western boundary of Louisiana, as we purchased it of France in 1803.
Western Boundary of the United States by the Treaty of 1783.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "western boundary" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.