The spring is an important historic landmark for several reasons.

The bridge is now a significant historic landmark in the city.

In 1960, the house was designated a national historic landmark.

The house was listed as an historic landmark in 1984.

After 1932, the historic landmark was used for many different purposes.

Efforts are being undertaken to make her home a historic landmark.

South Pass was designated a national historic landmark in 1961.

Cape North the community takes its name from this historic landmark.

A national historic landmark, it is open to the public by appointment.

By the 1980's it had been designated a historic landmark.