Since then, the frontier moved further west and the Mississippi River was referenced as the easternmost possible boundary of the West.

The Mississippi River forms the easternmost possible boundary for the West today.

This fortress was a frontier post protecting the then easternmost boundaries of Russia from forays of nomads.

Michillinda Avenue in Pasadena, California, basically marks the easternmost boundary of the city.

It is at the easternmost boundary of the Norman dialects displaying this feature.

The Second Battle of Independence actually commenced as a connected engagement at the Little Blue River, in the rural easternmost boundaries of the city.

The chain of islands form a part of the easternmost boundary of the Caribbean Sea.

The creek serves as a tributary of the San Antonio River and forms the easternmost boundary of its watershed.

Orleans has continued its steady growth as a suburban community since that time; its southern and easternmost boundaries continue to grow as more houses and businesses are built.

The Mississippi River is often referenced as the easternmost possible boundary of the West.